Preparation of Stereospecific Poly-p-methylstyrene

The toughening of polyamide-6 by brominated poly(isobutylene-co-p- methylstyrene): fracture and toughening mechanisms

A study on the toughening of polyamide-6 (PA-6) with a new elastomeric modifier, brominated poly(isobutylene-co-p-methylstyrene) (BrXP-50), was conducted. Morphological analyses and mechanical tests were combined to evaluate the toughening mechanisms of modified PA-6 and the fracture mechanism of unmodified PA-6. We conclude that the fracture mechanism of unmodified PA-6 in the impact test is c...

Absorption Kinetics of Phenol into Different Size Nanopores Present in Syndiotactic Polystyrene and Poly (p-methylstyrene)

Preparation of ion-track membranes of poly(p-phenylene terephthalamide)

There have been numerous studies on ion-track membranes of poly(ethylene terephthalate) (PET) and polycarbonate (PC), which are easily prepared by ion beam irradiation and subsequent alkaline etching. More importantly, the ion-track membranes of chemically and thermally stable polyimide (PI) and polyamide (PA), with controlled pore shape and size, may be required for the design of materials tha...

Functionalization of poly methylstyrene latex particles in an emulsifier-free system

Ž . Ž . Poly methylstyrene PMS latex particles in an emulsifier-free emulsion were first synthesized by using 2,29-azobisŽ . Ž . 2-amidinopropane dihydrochloride V-50 as an initiator. Purification of the latexes by dialysis was followed in Ž . order to remove residual monomer, initiator and electrolytes. The cationic poly methylstyrene latexes were then oxidized in the presence of t-butyl hydro...

Preparation and Properties of Polycaprolactone/Poly (Butylene Terephthalate) Blend

Polycaprolactone (PCL) and poly(butylene terephthalate) (PBT) blend was prepared by melt processing. The PCL/PBT blend showed similar morphology with that of pure PCL.The crystallization temperature of PCL was increased by the incorporation of PBT. It was also observed that the peak height in the DSC thermograms decreased and then disappeared by adding 40 % or more PBT which might be due to...