PMMA films in the high global chain orientation and nearly random segmental orientation(GOLR) state were prepared by uni-axially drawing at temperatures 20~30℃
ulfonated syndiotactic polystyrene ionomers (SsPS) with 1.8 mol% degree of sulfonation have been studied.SWAXD shows that the crystallinity of SsPS ionomers was
The correlation between shape and size of linear chains on the simple cubic lattice is inmvestigated using a dynamic Monte Carlo technique.A positive correlatio
A novel kind of copolymer with ABA-type block structure was synthesized by anionic ring-openingpolymerization of β-butyrolactone (β-BL) in the presence of a P