@article{mohan_gurarslan_joyner_child_tonelli_2011, title={Melt-crystallized nylon-6 nucleated by the constrained chains of its non-stoichiometric cyclodextrin inclusion compounds and the nylon-6 coalesced from them}, volume={52}, ISSN={["0032-3861"]}, DOI={10.1016/j.polymer.2010.12.049}, abstractNote={Non-covalently bonded crystalline inclusion compounds (ICs) have been formed by threading host cyclic starches, cyclodextrins (CDs), onto guest nylon-6 (N-6) chains. When excess N-6 is employed, non-stoichiometric (n-s)-N-6-CD-ICs, with partially uncovered and “dangling” N-6 chains, result. While the host crystalline CD lattice is stable to ∼300 °C, the uncovered, yet constrained, portions of the N-6 chains emanating from the CD-IC surfaces may crystallize below, or be molten above ∼225 °C, and confer upon them shape-memory. When heated between the Tm of N-6 and the decomposition temperature of the (n-s)-N-6-CD-IC, they may be deformed into a new shape, which is retained following a rapid quench below Tm. When this newly-shaped sample is heated above the Tm of the un-included and crystalline portions of N-6, it reverts back to its original shape in response to the constraining CD-IC crystals. When added at low concentrations, the non-toxic (n-s)-N-6-CD-ICs serve as effective nucleating agents for the bulk crystallization of N-6 from the melt. This is a consequence of the ability of the N-6 chains protruding from their (n-s)-CD-ICs to crystallize more rapidly and at higher temperatures than bulk N-6 chains when their molten mixture is cooled, thereby providing finely dispersed crystalline nuclei for the subsequent crystallization of the bulk N-6 chains. Melt-crystallized N-6 nucleated with (n-s)-N-6-CD-ICs have finer grained more homogeneous morphologies than un-nucleated N-6 samples. Furthermore, N-6s coalesced from their CD-ICs by appropriate removal of the host CD are also found to effectively nucleate the melt-crystallization of bulk N-6, even after long periods of annealing above the Tm of N-6. N-6 coalesced from stoichiometric CD-ICs, with full N-6 coverage, and from (n-s)-N-6-CD-ICs, with only partial N-6 coverage, show very similar crystallization behaviors and both are effective as nucleants, and this is reflected by their higher densities and improved mechanical properties.}, number={4}, journal={POLYMER}, author={Mohan, A. and Gurarslan, A. and Joyner, X. and Child, R. and Tonelli, A. E.}, year={2011}, month={Feb}, pages={1055–1062} }
 @article{mohan_joyner_kotek_tonelli_2009, title={Constrained/Directed Crystallization of Nylon-6. I. Nonstoichiometric Inclusion Compounds Formed with Cyclodextrins}, volume={42}, ISSN={["1520-5835"]}, DOI={10.1021/ma901599c}, abstractNote={Noncovalently bonded crystalline inclusion compounds (ICs) have been formed by threading host cyclic starches, cyclodextrins (CDs), onto guest nylon-6 (N-6) chains. When excess N-6 is employed, nonstoichiometric (n-s)-N-6-CD-ICs, with partially uncovered and “dangling” N-6 chains, result. While the host crystalline CD lattice is stable to ∼300 °C, the uncovered, yet constrained, portions of the N-6 chains emanating from the CD-IC surfaces may crystallize below or be molten above ∼225 °C. We have been studying the constrained crystallization of the unthreaded N-6 chains “dangling” from (n-s)-N-6-CD-ICs, with comparison to bulk N-6 samples, as functions of N-6 molecular weights, lengths of uncovered N-6 chains (N-6:CD stoichiometry), and the CD host used. In the IC channels formed with host α- and γ-CDs containing 6 and 8 glucose units, respectively, single and pairs of side-by-side N-6 chains are threaded and included. In α-CD-ICs, the ∼0.5 nm channels produced by stacked α-CDs are separated by ∼1.4 nm, wh...}, number={22}, journal={MACROMOLECULES}, author={Mohan, Anushree and Joyner, Xavier and Kotek, Richard and Tonelli, Alan E.}, year={2009}, month={Nov}, pages={8983–8991} }
 @article{jasper_mohan_hinestroza_barker_2007, title={Degradation processes in corona-charged electret filter-media with exposure to Ethyl Benzene}, volume={2}, number={4}, journal={Journal of Engineered Fibers and Fabrics}, author={Jasper, W. J. and Mohan, A. and Hinestroza, J. and Barker, R.}, year={2007}, pages={19–24} }
 @article{jasper_mohan_hinestroza_barger_2007, title={Degredation processes in corona-charged electret filter-media with exposure to ethyl benzene}, volume={2}, number={4}, journal={Journal of Engineered Fibers and Fabrics}, author={Jasper, W. J and Mohan, A. and Hinestroza, J. and Barger, R.}, year={2007}, pages={19–24} }
 @article{jasper_hinestroza_mohan_kim_shiels_gunay_thompson_barker_2006, title={Effect of xylene exposure on the performance of electret filter media}, volume={37}, ISSN={["0021-8502"]}, DOI={10.1016/j.jaerosci.2005.06.008}, abstractNote={Performance degradation of electret filter media when exposed to xylene was investigated using a custom-made exposure apparatus. Three types of electret filter media were exposed to xylene in liquid and gas phases. Experimental data indicated that the penetration percentage of di-octyl-phtalate (DOP) aerosols through electret filter media was not influenced by exposure to xylene vapors for periods up to 8 h. The filtration performance for all three types of electret filter media decreased over 30% when the samples were exposed to liquid xylene. Pressure drop changes of the filter media prior and after exposure to liquid xylene were statistically negligible. Neither morphological changes nor degradation of the polymer fibers were observed after exposure of the filter media samples to liquid xylene. Thermodynamic simulations were performed to determine the molar flux of liquid and gas phases through the filter media specimens. Experimental results obtained via capillary gas chromatography were within 4% of the predicted values. The decrease in performance was attributed to changes in the density and spatial distribution of the electret charges on the surface of the polymer fibers.}, number={7}, journal={JOURNAL OF AEROSOL SCIENCE}, publisher={Elsevier BV}, author={Jasper, W. and Hinestroza, J. and Mohan, A. and Kim, J. and Shiels, B. and Gunay, M. and Thompson, D. and Barker, R.}, year={2006}, month={Jul}, pages={903–911} }