Synthesis and association of phosphonium cation-containing polyesters for food packaging applications

POLY 637

Emily B. Anderson, eander05@vt.edu, Department of Chemistry, Virginia Tech, 107 Davidson Hall, Blacksburg, VA 24061, Timothy E. Long, telong@vt.edu, Dept. of Chemistry, Virginia Tech, Blacksburg, VA 24061-0344, and Serkan Unal, Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212.
PET-based polyesters were successfully end-capped with butyl p-carboxyphenyl diphenylphosphonium bromide. Molecular weight was lowered by increasing the amount of end-capping agent charged to the reaction. 1H NMR, 31P NMR, and DSC provided evidence of ionic aggregation. Dissociation of the aggregates with temperatures above 200 °C could provide a new route to facile melt processing of high-performance polymers.
 

Polymer Design for Foods and Nutrition
9:00 AM-11:40 AM, Thursday, August 23, 2007 Westin Boston Waterfront -- Grand Ballroom B, Oral

Division of Polymer Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007