The glass transition characteristics of two groups of semiflexible copolymers incorporating meta linkages in the chain backbone have been investigated as a function of copolymer composition and crystallization history. The introduction of meta-phenylene linkages into the backbone of poly (phenylene sulfide) and poly (ether ketone ketone) leads to a loosening of the constraint which is imposed on the amorphous chains by the crystalline phase in these semicrystalline materials. This is manifested by a decrease in glass transition offset with increasing meta content, and the full mobilization of rigid amorphous material for less restrictive crystallization conditions.
|Number of pages||5|
|Journal||Journal of Engineering and Applied Science|
|State||Published - 1996|
|Event||Proceedings of the 1996 54th Annual Technical Conference. Part 2 (of 3) - Indianapolis, IN, USA|
Duration: May 5 1996 → May 10 1996
ASJC Scopus subject areas
- Engineering (all)