摘要:The papers with 57 refs. (to Oct, 1991) reviews the studies of structure and properties of isotactic PS. Our emphasis will be on discussing the relationship between epimerization,crystallization, gelation or gel,mechanic & physical properties of isotactic PS and its structure,as well as processing and application of isotactic PS.
摘要:In this article, we reviewed the recent progress in the initiators of the vinyl cationic polymerization including living and common cationic polymerization. We briefly described the main kinds of the new initiators and the mechanism of initiating.
摘要:Research on the structure,morphology and properties of polymer employing high pressure method is a frontier project in polymer science. The structure and morphology of polymer crystallized under high pressure, high pressure crystallization kinetics and thermodynamics, annealing under high pressure are introduced systematically in this review,on the basis of a large amounts of literature.
摘要:Recent advance of random styrene— maleic anhydride (R- SMA)copolymerization made a systematic review. The relationships between the kinetic,polymerization technology and recipes,the structures and perporties of copolymers were discussed. It is considered that a series of R-SMA copolymers may be a good type of heat- resistant matericals and mixtures.
关键词:Styrene and maleic anhydride copolymer;Random copolymer;Bulk copolymerization
摘要:"Intelligent" materials have the abiligy to perform sensing, processing and actuating functions. Hydrogels as intelligent materials have promising potential for application. This paper has reviewed recent progress in research activities on intelligent hydrogels. The discussion focuses on stimulative responsibilities via Flory swelling theory. Chemomechamical phenomenon and gel phase transition are introduced as well.
摘要:The copolymer compatibilizer influence strongly the morphologies and properties of immiscible polymer blands. Their functions are to enhance the adhesion and decrease the interfacial tension between two phases. This paper deals with molecular design of compatibilizers and their influences on compatibilizing effects. The recent advancements of reactive and nonreactive copolymer compatibilizers also are discussed separatelly.