Influence of Confinement on the Fragility of Antiplasticized and Pure Polymer Films Export

@article{riggleman06, abstract = {We investigate by molecular dynamics simulation how thin film confinement modifies the fragility of a model glass-forming liquid characterized previously in the bulk. Film confinement is found to reduce the relative fragility of the polymer fluid, leading to effects similar to simulations of the addition of an antiplasticizer additive. A reduction of fragility is not observed for the antiplasticized polymer film. These effects are interpreted in terms of variation in the string (cooperatively moving segments) concentration with film confinement and the addition of antiplasticizing additives.}, author = {Riggleman, Robert A. and Yoshimoto, Kenji and Douglas, Jack F. and de Pablo, Juan J.}, citeulike-article-id = {3689166}, citeulike-linkout-0 = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000097000004045502000001&idtype=cvips&gifs=yes}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRL/v97/e045502}, journal = {Physical Review Letters}, keywords = {confinement, fragility, polymer, simulation}, number = {4}, pages = {045502}, posted-at = {2008-11-25 18:03:14}, priority = {4}, publisher = {APS}, title = {Influence of Confinement on the Fragility of Antiplasticized and Pure Polymer Films}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000097000004045502000001&idtype=cvips&gifs=yes}, volume = {97}, year = {2006} }

TY - JOUR ID - riggleman06 L3 - citeulike-article-id:3689166 N2 - We investigate by molecular dynamics simulation how thin film confinement modifies the fragility of a model glass-forming liquid characterized previously in the bulk. Film confinement is found to reduce the relative fragility of the polymer fluid, leading to effects similar to simulations of the addition of an antiplasticizer additive. A reduction of fragility is not observed for the antiplasticized polymer film. These effects are interpreted in terms of variation in the string (cooperatively moving segments) concentration with film confinement and the addition of antiplasticizing additives. IS - 4 JF - Physical Review Letters EP - 045502 TI - Influence of Confinement on the Fragility of Antiplasticized and Pure Polymer Films PB - APS VL - 97 SP - 045502 KW - confinement KW - fragility KW - polymer KW - simulation AU - Riggleman, Robert AU - Yoshimoto, Kenji AU - Douglas, Jack AU - de Pablo, Juan PY - 2006/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000097000004045502000001&idtype=cvips&gifs=yes ER -