Blends of polyphenylene sulfide (PPS) containing trace amounts of branching and/orcross-linking in chain and Polyamide-66(PA-66) have been prepared by melt blen
(D, L)-Lactide (LA) was first polymerized with one component of rare earth cata-lysts [Nd(naph)<sub>3</sub>, Nd(oct)<sub>3</sub>, Nd(O-iPr)3, Nd(AcAc)<sub>3</sub>, Y(AcAc)<su
Crosslinking is one of the effective routes for improving the orientation stability of poledpolymer films. The derivative of polyvinyl alcohol containing 4-nitr
By means of polarizing optical microscopy (POM), deformation behavior of four kinds of fibers, i.e. ultra highmolecular weight polyethylene (UHMW-PE) fiber, pol