Effect of Molecular Weight and Branch Structure on the Crystallization and Rheological Properties of Poly(butylene adipate).(Statistical Data Included) From: Polymer Engineering and Science | Date: July 1, 2001| Author: CHAE, HAN GI; KIM, BYOUNG CHUL; IM, SEUNG SOON; HAN, YANG KYOO | COPYRIGHT 2001 Society of Plastics Engineers, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

BYOUNG CHUL KIM [*]

YANG KYOO HAN [1]

High molecular weight linear and branched poly(butylene adipate)s (PBAs) were prepared, and crystallization behavior and rheological properties were investigated. PBAs showed multiple melting behavior. Increasing molecular weight retarded the crystallization rate and increased the induction time for crystallization. Introducing branches to the polymer led to similar results. The Avrami exponent (n) for the linear and bran...