TY - JOUR TI - Le Sparks-mandril comme prothese arterielle: Un concept ingenieux, un echec complet. Que faut-il en retenir? AU - Guidoin, R. AU - Thevenet, A. AU - Noel, H.P. AU - Mary, H. AU - Marois, M. AU - Gosselin, C. AU - KING, Martin W. T2 - Duplicate AB - The Sparks-Mandril blood vessel precursor system, an autogenous tissue growth-promoting device, in spite of its ingenuity and its surgical elegance, has received only limited usage. At technique for peripheral blood vessels by several authors. In the latter period, this laboratory also undertook similar work. The results of seven implantations in dogs and two in patients are reported here in the context of a program on the evaluation of blood vessel substitutes, their mode of operation and their long term performance. The clinical status and the pathology of the grafts at time of failure were investigated using techniques of scanning electron microscopy. This work confirms the findings of other centres regarding the generally unsatisfactory performance of the Sparks-Mandril system. Possible causes for failure in mandril-formed blood vessels are discussed. DA - 1984/// PY - 1984/// DO - 10.3109/10731198009118977 VL - 9 SP - 277–289 ER - TY - CONF TI - Transient thermophysical properties of thermally degrading fabrics and their effect on thermal protection AU - Barker, R.L. AU - Shalev, I. C2 - 1984/// C3 - Proceedings of the Fiber Society / SAMPE Conference on high performance textile structures DA - 1984/// ER - TY - JOUR TI - THERMOTROPIC HOMOPOLYESTERS .6. A STUDY OF POLYMERS BASED ON 4'-HYDROXYPHENYL-4-HYDROXYBENZOATE AU - KRIGBAUM, WR AU - KOTEK, R AU - ISHIKAWA, T AU - HAKEMI, H AU - PRESTON, J T2 - EUROPEAN POLYMER JOURNAL AB - Polyesters were synthesized from 4′-acetoxyphenyl-4-acetoxybenzoate and dibasic acids having 6–12 methylene units using the transesterification procedure described by van Luyen and Strzelecki. These polymers are designated Sn, where n is the number of methylene units in the diacid. The transition temperatures of our polymers stand in reasonable agreement with those reported by Strzelecki and Liébert. The nematic phase extends over a broad temperature range (70–100°), and the biphasic region spans an additional 50°. The texture of the nematic phase is normal for S7-1 having ηinh = 0.30 dl/g, but the other polymers show bright nematic droplets on a darker background. The density of droplets decreases with increasing ηinh in the S7 series, and as η is increased for the other polymer homologues. Only S7-1 exhibits Williams domains on application of an electric field. Quite different properties are found for the polyester having ηinh = 0.80 dl/g prepared from 4′-hydroxyphenyl-4-hydroxybenzoate and the diacid chloride. It melted sharply 24° higher, and its nematic phase showed a normal texture. Moreover, its nematic-isotropic transition appears in the DSC as a sharp peak, and the biphasic region spans only 9°. We believe the transesterification reaction occasionally involves the internal ester linkage in the monomer unit, producing a polymer with no definite repeating unit structure and a distribution of hard segment lengths. DA - 1984/// PY - 1984/// DO - 10.1016/0014-3057(84)90042-9 VL - 20 IS - 3 SP - 225-235 SN - 0014-3057 ER - TY - JOUR TI - The use of textile Teflon arterial prostheses: How successful were they? AU - Couture, J. AU - Guidoin, R. AU - King, M. AU - Marois, M. T2 - Canadian Journal of Surgery DA - 1984/// PY - 1984/// VL - 27 SP - 575-782 ER - TY - JOUR TI - Fatigue mecanique dans une prothese arterielle en polyester: Etude d'un cas exceptionnel AU - Batt, M. AU - King, M. AU - Guidoin, R. AU - Michetti, C. AU - Marois, M. AU - Gosselin, C. AU - Garton, A. AU - Le Bas, P. T2 - La Presse Me?dicale DA - 1984/// PY - 1984/// VL - 13 SP - 1997-2000 ER - TY - CONF TI - Computer-aided design of non-planar woven structures: an approach for generating graphical representations AU - Hoskins, J.A. AU - King, M.W. C2 - 1984/// C3 - Proceedings of the Fiber Society / SAMPE Conference on high performance textile structures DA - 1984/// ER - TY - JOUR TI - An evaluation of Czechoslovakian polyester arterial prostheses AU - King, M.W. AU - Guidoin, R. AU - Gunasekera, K. AU - Martin, L. AU - Marois, M. AU - Blais, P. AU - Maarek, J.M. AU - Gosselin, C. T2 - ASAIO Journal DA - 1984/// PY - 1984/// VL - 7 SP - 114-33 ER - TY - CONF TI - The impact of polyester arterial prostheses of Czechoslovakian origin: An in vitro and in vivo evaluation AU - King, M.W. AU - Guidoin, R.G. AU - Gunasekera, K.R. AU - Martin, L. AU - Marois, M. AU - Blais, P. AU - Maarek, J.M. AU - Gosselin, C. C2 - 1984/// C3 - Biomaterials '84 : transactions, Second World Congress on Biomaterials, 10th Annual Meeting of the Society for Biomaterials, Sixteenth International Biomaterials Symposium DA - 1984/// VL - 7 SP - 92 PB - [S.l.] : The Society ER - TY - CONF TI - The Sparks-mandril arterial prosthesis: An ingenious concept, but a clinical failure. What has been learnt to date? AU - Guidoin, R. AU - Thevenet, A. AU - King, M. AU - Noel, H.P. AU - Mary, H. AU - Marois, M. AU - Gosselin, C. A2 - S.H. Skotnicki, F.G.M. Buskens A2 - Reinaerts, H.H.M. C2 - 1984/// C3 - Recent advances in vascular grafting : proceedings of the international symposium held at the Catholic University in Nijmegen, the Netherlands, 26-28 April 1984 DA - 1984/// PB - Gerrards Cross, Buckinghamshire, England : System 4 Associates SN - 9780948360008 ER - TY - CONF TI - Technologie pour evaluer le comportement dynamique des protheses arterielles AU - Marceau, D. AU - Cardou, A. AU - Guidoin, R. AU - Blais, P. AU - King, M. AU - Gosselin, C. C2 - 1984/// C3 - Biomedical engineering : the future of health care : proceedings, 10th Canadian Medical & Biological Engineering Conference, Ottawa, Canada, June 1984 and papers of the 4th Canadian Clinical Engineering Conference, June 1983 DA - 1984/// PB - Gloucester, Ont. : Canadian Medical and Biological Engineering Society ER - TY - JOUR TI - New systems of yarn making AU - Oxenham, W. T2 - Textile Month DA - 1984/// PY - 1984/// VL - February SP - 34-38 ER - TY - CONF TI - Interactive graphics and the representation of non-cartesian woven textile structures AU - Hoskins, J.A. AU - King, M.W. C2 - 1984/// C3 - Proceedings : Graphics interface '84, 28 May-1 June 1984, Ottawa, Ontario = Comptes rendus : Interface graphique '84, 28 mai-1 juin 1984, Ottawa, Ontario. DA - 1984/// SP - 149-154 PB - [Ottawa]: National Research Council of Canada, ER - TY - JOUR TI - Vers une optimisation des caracteristiques geometriques des carresfours prothetiques. I - Analyse statistique du site aorto-iliaque chez l'humain AU - Tanguay, P. AU - Tremblay, G. AU - Guidoin, R. AU - Marois, M. AU - Pare, G. AU - Gosselin, C. AU - King, M. AU - Choplin, L. T2 - European Revue of Biomedical Technology DA - 1984/// PY - 1984/// VL - 6 IS - 2 SP - 125-129 ER - TY - JOUR TI - Developpement d'un systeme d'essai pour l'etude du comportement dynamique des protheses arterielles alloplastiques: Le Vivocycleur AU - Marceau, D. AU - Cardou, A. AU - Guidoin, R. AU - King, M. AU - Gosselin, C. T2 - European Revue of Biomedical Technology DA - 1984/// PY - 1984/// VL - 6 IS - 1 SP - 31-38 ER - TY - CONF TI - Theoretical determination of porosity and its application to the design of woven grafts AU - Pourdeyhimi, B. AU - Chu, C.C. C2 - 1984/// C3 - Biomaterials '84: transactions [of the] second World Congress on Biomaterials, 10th annual meeting of The Society for Biomaterials [and the] Sixteenth International Biomaterials Symposium. Volume VII DA - 1984/// PB - [S.l.]: The Society ER - TY - CONF TI - The effect of load cycling on dimensional stability of surgical vascular grafts AU - Pourdeyhimi, B. AU - Chu, C.C. C2 - 1984/// C3 - Biomaterials '84: transactions [of the] second World Congress on Biomaterials, 10th annual meeting of The Society for Biomaterials [and the] Sixteenth International Biomaterials Symposium. Volume VII DA - 1984/// PB - [S.l.]: The Society ER - TY - CHAP TI - Albuminated polyester prostheses: the effect of sterilization procedures on the healing process AU - Guidoin, R. AU - Snyder, R. AU - King, M. AU - Martin, L. AU - Sigot, M.F. AU - Marois, M. AU - Botzko, K. AU - Awad, J. AU - Gosselin, C. T2 - Biomaterials and biomechanics 1983: proceedings of the Fourth European Conference on Biomaterials, Leuven, Belgium, August 31-September 2, 1983 A2 - P. Ducheyne, G. Van der Perre A2 - Aubert, A. E. PY - 1984/// PB - New York: Elsevier SN - 9780444423528 ER - TY - JOUR TI - Unconventional spinning systems AU - Oxenham, W. T2 - Textile Asia DA - 1984/// PY - 1984/// VL - 15 IS - 2 SP - 40-45 ER - TY - JOUR TI - Staple spinning; card sliver to yarn AU - Oxenham, W. T2 - Textile Asia DA - 1984/// PY - 1984/// VL - 15 IS - 3 SP - 48-63 ER - TY - JOUR TI - PROTECTIVE FABRICS - A COMPARISON OF LABORATORY METHODS FOR EVALUATING THERMAL PROTECTIVE PERFORMANCE IN CONVECTIVE RADIANT EXPOSURES AU - SHALEV, I AU - BARKER, RL T2 - TEXTILE RESEARCH JOURNAL AB - Two laboratory methods used to evaluate the ability of fabrics to provide protective insulation against high intensity thermal exposures are compared. These procedures are ASTM D4108-82, a method that uses a single laboratory gas burner as the heat source, and a more versatile method that combines two gas burners and quartz heaters to provide a different mixture of radiant and convective heat. Comparisons are based on a series of tests made on a large group of specialized fabrics that might be used in the construction of protective apparel. Among the fabrics tested are samples made with flame resistant cotton, rayon, and wool, fabrics from glass and ceramic fibers, and fabrics from polyaramids, cross-linked phenolics, modacrylics, polybenzimidazole, and stabilized acrylic fibers. Differences in materials comparisons caused by the test procedure are discussed, especially the difference made by the balance of radiant to convective energy provided by the heat sources. Correlations are made with fiber and fabric properties. Special emphasis is placed on observing the performance of alu minized samples. DA - 1984/// PY - 1984/// DO - 10.1177/004051758405401003 VL - 54 IS - 10 SP - 648-654 SN - 1746-7748 ER - TY - JOUR TI - EXPERIMENTAL DETECTION OF CAPILLARY ADHESION FORCES BETWEEN SINGLE TEXTILE FIBERS AU - BARKER, RL AU - SHIN, DH T2 - TEXTILE RESEARCH JOURNAL AB - A torsion balance arrangement housed in a specially designed chamber was used to study the effect of atmospheric humidity on the normal adhesion of single polyester, nylon, cotton, and glass fibers, which were contacted at right angles. Marked increase in fiber-to-fiber attraction detected at humidities in excess of 60% is attributed to capillary condensation from the vapor phase. Experimental results are interpreted in light of what is known about capillary condensation in small pores and the adsorption of moisture onto fiber surfaces. DA - 1984/// PY - 1984/// DO - 10.1177/004051758405400906 VL - 54 IS - 9 SP - 590-597 SN - 0040-5175 ER - TY - JOUR TI - POLYESTER PROSTHESES AS SUBSTITUTES IN THE THORACIC AORTA OF DOGS .2. EVALUATION OF ALBUMINATED POLYESTER GRAFTS STORED IN ETHANOL AU - GUIDOIN, R AU - MARTIN, L AU - MAROIS, M AU - GOSSELIN, C AU - KING, M AU - GUNASEKERA, K AU - DOMURADO, D AU - SIGOTLUIZARD, MF AU - SIGOT, M AU - BLAIS, P T2 - JOURNAL OF BIOMEDICAL MATERIALS RESEARCH AB - In an attempt to find an alternative procedure to the preclotting of porous textile vascular prostheses, the feasibility of an albumin coating and ethanol preservation technique has been evaluated by implanting albuminated polyester prostheses as substitutes in the thoracic aorta of dogs. Nine different grafts representing woven, knitted, and velour constructions were implanted for periods ranging from 4 h to 6 months. At the sacrifice, the grafts were excized for measurement of the thrombogenicity of the flow surface, for pathological examination by light microscopy and SEM, and for quantifying the changes in the textile structure during implantation. Also the kidneys were removed and examined for infarcts caused by trapped circulating emboli. The healing characteristics of the nine different grafts proved similar and followed the same sequence of events as preclotted control grafts. The albumin coating and ethanol preservation resulted in a somewhat slower rate of healing. Yet, given sufficient time, a more completely healed graft was achieved as evidenced by the presence of endothelial-like cells throughout the length of the graft. In addition, the albumin is believed to reinforce the textile structure by reducing the tendency to stretch and dilate in vivo. DA - 1984/// PY - 1984/// DO - 10.1002/jbm.820180909 VL - 18 IS - 9 SP - 1059-1072 SN - 0021-9304 ER - TY - JOUR TI - Lyotropic mesohases of cellulose in the ammonia-ammonium thiocyante solvent system: Effects of composition on phase types, in "polymer association structures" AU - Yang, K. S. AU - Cuculo, J. A. T2 - ACS Symposium Series AB - Cellulose can be dissolved in an NH3/NH4SCN solvent over a solvent composition range 70-80% (w/w) NH4SCN. Beyond certain minimum cellulose concentrations, depending on solvent composition, liquid crystalline phases will form. Cellulose having a 210 degree of polymerization will form a mesophase at a concentration of 3.5% (w/v) at 25°C in a solvent containing 70% NH4SCN. The minimum cellulose concentration for mesophase formation was highest when the solvent contained 75.5% NH4SCN. Under most conditions, these mesophases were the twisted cholesterics that typically develop from chiral mesogens. Their helicoidal pitch was higher in solvents richer in NH4SCN and at lower cellulose concentrations. Nematic phases, which can be construed as untwisted cholesteric phases, were easily prepared from solutions in which the cellulose concentration range was 8-16% and the solvent was 24.5% NH3 and 75.5% NH4SCN (w/w). Evidence suggests that the nematic phase forms when interchain cellulose interactions are suppressed. Fibers extruded from nematic solutions were more highly oriented, more fibrillar in texture and appreciably stiffer than those from cholesteric solutions. The former had moduli comparable to that of Fortisan, a strong regenerated cellulose fiber. DA - 1984/// PY - 1984/// DO - 10.1021/bk-1989-0384.ch011 VL - 384 ER - TY - JOUR TI - CYTOCOMPATIBILITY OF ALBUMINATED POLYESTER FABRICS AU - SIGOTLUIZARD, MF AU - DOMURADO, D AU - SIGOT, M AU - GUIDOIN, R AU - GOSSELIN, C AU - MAROIS, M AU - GIRARD, JF AU - KING, M AU - BADOUR, B T2 - JOURNAL OF BIOMEDICAL MATERIALS RESEARCH AB - Abstract An alternative to the usual technique of preclotting porous textile vascular prostheses prior to surgical implantation is to render them impermeable to blood by impregnation with a cross‐linked albumin filler matrix. This material subsequently becomes the foundation for cellular development. The compatibility of such impregnated fabrics with newly formed endothelial cells has been evaluated by an in vitro organotypic culture method. This technique enables the characterization and numeration of cells that develop on blood contact surfaces and enables determination of their rate of development. Woven, knitted, and velour fabrics were evaluated folllowing coating with albumin and either storage in Tyrode solution or 40% ethanol or desiccation by critical point drying. Preclotted cardiovascular repair fabrics prepared according to conventional surgical protocol served as controls. The identification of the newly formed cells was confirmed histologically. The most extensive and rapid cellular development was observed on the woven fabric and is believed may have resulted from the smoother surface topography of this substrate. Good cellular development was noted particularly on fabrics which had been stored in Tyrode solution. Ethanol had a deleterious effect on the apparent compatibility. DA - 1984/// PY - 1984/// DO - 10.1002/jbm.820180805 VL - 18 IS - 8 SP - 895-909 SN - 0021-9304 ER - TY - JOUR TI - ALBUMIN COATING OF A KNITTED POLYESTER ARTERIAL PROSTHESIS - AN ALTERNATIVE TO PRECLOTTING AU - Guidoin, R. AU - Snyder, R. AU - Martin, L. AU - Botzko, K. AU - Marois, M. AU - Awad, J. AU - KING, Martin W. AU - Domurado, D. AU - Bedros, M. AU - Gosselin, C. AU - al. T2 - ANNALS OF THORACIC SURGERY AB - Coating a knitted polyester arterial prosthesis with cross-linked albumin fills the interstices of the graft and relieves the surgeon of the necessity to preclot . This is of particular value in patients whose blood clotting properties are hypercoagulable, or hypocoagulable . In addition, such prostheses require less handling, which can lower the risk of bacteremic colonization and shorten the operative time. The in vivo behavior of the implanted albuminated prosthesis in the thoracic aorta of dogs is similar to that of preclotted grafts, although the sequences of early healing are different. The preclotted graft develops a continuous, thick thrombotic matrix on its luminal surface during the first 4 hours of implantation. Following the initiation of the fibrinolytic mechanism 24 to 48 hours postoperatively, this thrombotic deposit quickly recedes , leaving blood cells and platelets adhering here and there to the prosthetic surface. In comparison, the albuminated coating is not associated with major early thrombotic deposits. The albumin remains visible between the filaments during the first 2 weeks of implantation. Both treated and control grafts contain numerous thrombi on their inner surface after 1 to 2 weeks. After 1, 3, and 6 months, both implants are well encapsulated and present a glistening and continuous luminal surface. This excellent healing, however, can be compromised should the graft adhere too closely to the animal's lungs.+2 DA - 1984/// PY - 1984/// DO - 10.1016/S0003-4975(10)61131-9 VL - 37 IS - 6 SP - 457-465 SN - 0003-4975 ER - TY - JOUR TI - PREPARATION OF POLYAMIDES VIA THE PHOSPHORYLATION REACTION .9. EFFECT OF REACTION TEMPERATURE ON MOLECULAR-WEIGHT ON POLY(P-PHENYLENE TEREPHTHALAMIDE) AU - KRIGBAUM, WR AU - KOTEK, R AU - MIHARA, Y AU - PRESTON, J T2 - JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY AB - Journal of Polymer Science: Polymer Chemistry EditionVolume 22, Issue 12 p. 4045-4047 Note Preparation of polyamides via the phosphorylation reaction. IX. Effect of reaction temperature on molecular weight on poly(p-phenylene terephthalamide) W. R. Krigbaum, W. R. Krigbaum Gross Chemical Laboratory Duke University Durham, North Carolina 27706Search for more papers by this authorR. Kotek, R. Kotek Gross Chemical Laboratory Duke University Durham, North Carolina 27706Search for more papers by this authorY. Mihara, Y. Mihara Gross Chemical Laboratory Duke University Durham, North Carolina 27706Search for more papers by this authorJ. Preston, J. Preston Monsanto Fibers and Intermediates Co. Pensacola, Florida 32575Search for more papers by this author W. R. Krigbaum, W. R. Krigbaum Gross Chemical Laboratory Duke University Durham, North Carolina 27706Search for more papers by this authorR. Kotek, R. Kotek Gross Chemical Laboratory Duke University Durham, North Carolina 27706Search for more papers by this authorY. Mihara, Y. Mihara Gross Chemical Laboratory Duke University Durham, North Carolina 27706Search for more papers by this authorJ. Preston, J. Preston Monsanto Fibers and Intermediates Co. Pensacola, Florida 32575Search for more papers by this author First published: December 1984 https://doi.org/10.1002/pol.1984.170221239Citations: 26AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL References 1 N. Yamazaki, F. Higashi, and J. Kawabata, J. Polym. Sci. Polym. Chem. Ed., 12, 2149 (1974). 2 N. Yamazaki, M. Matsumoto, and F. Higashi, J. Polym. Sci. Polym. Chem. Ed., 13, 1373 (1975). 3 J. Preston and W. C. Hofferbert, Jr., J. Polym. Sci. Polym. Symp., 65, 13 (1978). 4 J. Preston, J. Asrar, and W. R. Krigbaum, “Cyclopolymerization and Polymers with Chain-Ring Structures”, ACS Symposium Series 195, p. 351, G. Butler and J. E. Kresta, Eds., 20, 3241 (1982). 5 J. Preston, W. R. Krigbaum, and R. Kotek, J. Polym. Sci. Polym. Chem. Ed., 20, 3241 (1982). 6 R. Kotek, W. R. Krigbaum, and J. Preston, J. Polym. Sci. Polym. Chem. Ed., 21, 2837 (1983). 7 W. R. Krigbaum, R. Kotek, and J. Preston, J. Polym. Sci. Polym. Chem. Ed., 22, 873 (1984). 8 F. Higashi, S. Ogata, and A. Aoki, J. Polym. Sci. Polym. Chem. Ed., 20, 2081 (1982). 9 H. Blades, U.S. Patent 3,767,756 (to E.I. duPont de Nemours and Co.), 1973. Citing Literature Volume22, Issue12December 1984Pages 4045-4047 ReferencesRelatedInformation DA - 1984/// PY - 1984/// DO - 10.1002/pol.1984.170221239 VL - 22 IS - 12 SP - 4045-4047 SN - 0887-624X ER - TY - JOUR TI - PREPARATION OF POLYAMIDES VIA THE PHOSPHORYLATION REACTION .8. AU - KRIGBAUM, WR AU - KOTEK, R AU - PRESTON, J T2 - JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY AB - Journal of Polymer Science: Polymer Chemistry EditionVolume 22, Issue 3 p. 873-876 Note Preparation of polyamides via the phosphorylation reaction. VIII W. R. Krigbaum, W. R. Krigbaum Gross Chemical Laboratory, Duke University, Durham, North Carolina 27706Search for more papers by this authorR. Kotek, R. Kotek Gross Chemical Laboratory, Duke University, Durham, North Carolina 27706Search for more papers by this authorJ. Preston, J. Preston Monsanto Fibers and Intermediates Company Pensacola, Florida 32575Search for more papers by this author W. R. Krigbaum, W. R. Krigbaum Gross Chemical Laboratory, Duke University, Durham, North Carolina 27706Search for more papers by this authorR. Kotek, R. Kotek Gross Chemical Laboratory, Duke University, Durham, North Carolina 27706Search for more papers by this authorJ. Preston, J. Preston Monsanto Fibers and Intermediates Company Pensacola, Florida 32575Search for more papers by this author First published: March 1984 https://doi.org/10.1002/pol.1984.170220339Citations: 8AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Citing Literature Volume22, Issue3March 1984Pages 873-876 RelatedInformation DA - 1984/// PY - 1984/// DO - 10.1002/pol.1984.170220339 VL - 22 IS - 3 SP - 873-876 SN - 1099-0518 ER - TY - PCOMM TI - LOAD-ELONGATION BEHAVIOR OF CRIMPED FILAMENTS AU - HONG, P AU - GUPTA, BS DA - 1984/// PY - 1984/// DO - 10.1177/004051758405401013 SP - 694-696 ER - TY - JOUR TI - REAGENT RESIDUES ON N-METHYLOLPYRROLIDONE-TREATED COTTON AU - BECK, KR AU - PASAD, DM AU - VAIL, SL AU - ZHOU, X T2 - JOURNAL OF APPLIED POLYMER SCIENCE AB - Residues remaining after drying and curing cotton fabric with either sodium bisulfate or zinc nitrate and N-methylolpyrrolidone, a monofunctional model durable press agent, have been quantitated by high performance liquid chromatography. The residues were identified as pyrrolidone, N-methylolpyrrolidone, N,N′-methylene-bis-2-pyrrolidone, and N,N′-(oxydimethylene)bis-2-pyrrolidone. The two catalysts fixed approximately the same amount of the N-methylolpyrrolidone to cellulose, but generated different ratios of the extractable residues. A comparison of the levels of these residues that are capable of releasing formaldehyde is given. The dominant residue from the NaHSO4 treatment was N-methylolpyrrolidone, while zinc nitrate generated more N,N′-(oxydimethylene)bis-2-pyrrolidone. DA - 1984/// PY - 1984/// DO - 10.1002/app.1984.070291131 VL - 29 IS - 11 SP - 3579-3585 SN - 0021-8995 ER - TY - JOUR TI - High performance liquid chromatographic analysis of durable press finishes AU - Beck, K. R. AU - Pasad, D. M. AU - Springer, K. S. AU - Player, C. M. T2 - Textile Chemist and Colorist DA - 1984/// PY - 1984/// VL - 16 SP - 15-18 ER - TY - JOUR TI - FORMALDEHYDE RELEASE FROM A MODEL N-METHYLOL SYSTEM AU - VAIL, SL AU - ZHOU, X AU - BECK, KR AU - PASAD, DM T2 - JOURNAL OF APPLIED POLYMER SCIENCE AB - A model N-methylol reactant system based on pyrrolidone derivatives has been used to study the chemical factors that control formaldehyde release. Fabric samples of known composition were prepared from chemically pure reactants and formaldehyde release was determined by the AATCC Sealed Jar Test. This work provides support for prior suggestions and a more direct approach for understanding unexpected results from tests on post-and precure fabrics. In addition, new findings demonstrate that the N-methylol reactant, its byproducts, and pure zinc nitrate are capable of reducing the level of formaldehyde release. DA - 1984/// PY - 1984/// DO - 10.1002/app.1984.070291130 VL - 29 IS - 11 SP - 3569-3577 SN - 0021-8995 ER - TY - JOUR TI - AN OVERVIEW OF THE GLASS-TRANSITION TEMPERATURE OF SYNTHETIC-POLYMERS AU - BECK, KR AU - KORSMEYER, R AU - KUNZ, RJ T2 - JOURNAL OF CHEMICAL EDUCATION AB - ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAn overview of the glass transition temperature of synthetic polymersKeith R. Beck , Richard Korsmeyer , and Rosemary J. Kunz Cite this: J. Chem. Educ. 1984, 61, 8, 668Publication Date (Print):August 1, 1984Publication History Received3 August 2009Published online1 August 1984Published inissue 1 August 1984https://doi.org/10.1021/ed061p668Request reuse permissionsArticle Views725Altmetric-Citations22LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (3 MB) Get e-Alertsclose Get e-Alerts DA - 1984/// PY - 1984/// DO - 10.1021/ed061p668 VL - 61 IS - 8 SP - 668-670 SN - 0021-9584 ER -