@article{frey_theil_2004, title={Calculated phase diagrams for cellulose/ammonia/ammonium thiocyanate solutions in comparison to experimental results}, volume={11}, ISSN={["1572-882X"]}, DOI={10.1023/B:CELL.0000014771.69377.3d}, number={1}, journal={CELLULOSE}, author={Frey, MW and Theil, MH}, year={2004}, month={Mar}, pages={53–63} } @article{yang_cuculo_theil_1992, title={LYOTROPIC MESOPHASES OF CELLULOSE IN THE AMMONIA AMMONIUM THIOCYANATE SOLVENT SYSTEM - PHASE-RELATIONSHIPS}, volume={30}, ISSN={["0887-6266"]}, DOI={10.1002/polb.1992.090300401}, abstractNote={AbstractMesophase formation of the cellulose/NH3/NH4SCN system has been studied as a function of system composition at 25°C. Compositions for incipience of mesophase formation and for wholly anisotropic phase formation have been determined and relevant phase diagrams constructed. The biphasic gap narrowed when the solvent composition approached 75.5 weight percent NH4SCN and as the cellulose concentration decreased. As solvent composition was changed, the minimum cellulose volume fraction for mesophase formation ranged between 0.02 to 0.045.}, number={4}, journal={JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS}, author={YANG, KS and CUCULO, JA and THEIL, MH}, year={1992}, month={Mar}, pages={315–324} } @misc{cuculo_theil_yang_chen_1989, title={Anisotropic cellulose articles, fibers, and films and method of producing same}, volume={4,840,673}, number={1989 Jun. 20}, publisher={Washington, DC: U.S. Patent and Trademark Office}, author={Cuculo, J. A. and Theil, M. H. and Yang, K. S. and Chen, Y. S.}, year={1989} } @article{yang_cuculo_1984, title={Lyotropic mesohases of cellulose in the ammonia-ammonium thiocyante solvent system: Effects of composition on phase types, in "polymer association structures"}, volume={384}, DOI={10.1021/bk-1989-0384.ch011}, abstractNote={Formation de solution lyotrope nematique dans ce systeme. Faible rotation specifique des solutions. Augmentation de la concentration minimale de cellulose pour la formation de mesophase, par augmentation de la concentration en NH 4 SCN}, journal={ACS Symposium Series}, author={Yang, K. S. and Cuculo, J. A.}, year={1984} } @misc{cuculo_theil_yang_chen_1988, title={Anisotropic cellulose solutions, fibers, and films formed therefrom}, volume={4,750,939}, number={1988 Jun. 14}, publisher={Washington, DC: U.S. Patent and Trademark Office}, author={Cuculo, J. A. and Theil, M. H. and Yang, K. S. and Chen, Y. S.}, year={1988} } @article{theil_caviness_1979, title={PHASE-TRANSITIONS IN CELLULOSE SOLUTIONS - KINETICS OF PRECIPITATION OF CELLULOSE FROM DILUTED CADOXEN SOLUTIONS}, volume={17}, ISSN={["0887-6266"]}, DOI={10.1002/pol.1979.180170314}, abstractNote={AbstractSolutions of cellulose (degree of polymerization: 296 ± 16) in tris(ethylenediamine)cadmium(II)hydroxide‐ethylenediamine‐water (cadoxen), 1.015% (weight per volume) were diluted 1:1.5 with water. The ensuing isothermal precipitations were followed dilatometrically at temperatures ranging from 27.50 to 48.45°C. The precipitation data were characterized by a positive temperature coefficient. They generally conformed to a one‐dimensional nucleation rate law; the Avrami exponents were close to unity. Alternatively, they fit a first‐order reaction rate expression with respect to cellulose concentration. The low crystallinity of the precipitated cellulose leads to the interpretation of the kinetics in terms of the dissociation of a cellulose‐cadoxen complex, rather than phase separation, as the rate‐determining step. The nucleation rate law suggests a one‐dimensional nonrandom cooperative chemical process, while the first‐order rate law suggests a random process.}, number={3}, journal={JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS}, author={THEIL, MH and CAVINESS, ET}, year={1979}, pages={497–513} } @article{theil_1970, title={FUSION OF HOMOPOLYMERS AND ORDERED COPOLYMERS CONTAINING ETHYLENE SEBACATE STRUCTURAL UNITS}, volume={8}, ISSN={["0449-2978"]}, DOI={10.1002/pol.1970.160080610}, abstractNote={AbstractThe melting temperatures of homopolymers of poly(ethylene sebacate) possessing a most probable molecular weight distribution and ordered copolymers of ethylene sebacate/propylene adipate were studied by slow heating processes and by the analysis of the dependence of the melting temperature on the crystallization temperature utilizing rapid heating rates. For the ordered copolyesters, where the composition of the crystallizing co‐units ranged from 0.8 to 0.2 mole fraction the latter method gave results which were similar to those that have been obtained for the other polymer systems that have been studied. Extrapolated equilibrium melting temperatures could be obtained in a straightforward manner and were found to be independent of the copolymer composition in accord with theoretical expectations. On the other hand, a unique set of results were obtained for the homopolymers. A plot of the relationship between the melting temperature and the crystallization temperature for all the molecular weights studied gave a slope close to unity. This made it operationally impossible to extrapolate to the equilibrium melting temperature for this system.}, number={6}, journal={JOURNAL OF POLYMER SCIENCE PART A-2-POLYMER PHYSICS}, author={THEIL, MH}, year={1970}, pages={957-&} }