摘要:The basic aspects for two groups of reinforced themoplastics are reviewed. One group is In - situ composites reinforced by In - situ formed fibrils of thermotropic liquid crystalline polymders(TLCPs) .Two crucial points for the effective reinforcing,i.e. the fibrillation of TLCPs in matrix resins and the compatibilization in the immiscible blends of TLCPs and matrix resins , have been investigated experimentally. The other group is In - situ hybrid composites, invented by the author. This group of materials is reinforced by fibers and fibrils with their diameters at two orders of magnitude.
摘要:Several levels of microstructure - controllable ordered network polymers can be prepared by a new synthesis method called" stepwise coupling polymerization" . These orderer netword polymers include: soluble one - dimensional ladderlike or tubular polymers,and insoluble two - or three - dimensional sieve - plate - like network polymers. Novel reactive ladderlike polysilsesquioxanes including H - T, Vi - T or Allyl - T,EtO -T and its copolymers are important precursors of functional ladderlike polymers such as fishbonelike (FB) LCPs,rowboatlike NLO and LCPs,disclike metal - coordinated FBLCPs and tubular polysiloxanes . The interesting exploration on the applications of functional ladderlike polysiloxanes includes polymer - network liquid crystal (PNLC) film used for stablized liquid crystal display, active command layer used for photoregulation of liquid crystal alignment,the LC orietation film with controllable pretilt angle,new SHG nonlinear optical film with good low decay and conductive film based on self - assemling from discodic metal - coordinated units connected with ladderlike backbone •••The important progress in preparation of tubular polysiloxane and its supermolecular assemblies predicted a colorful future in application as nanoscale sensors or reactors with special molecular recorgnition and selections.
摘要:In this papar, attention has been focused mainly on the research status of the application of carbon dioxide as a direct material for polymer synthesis. The conventional methods of synthesis and new plasma polymerization were introduced. The application and development of carbon dioxide in polymer were discussed.
摘要:Solid polymer electrolytes (SPE) have many advantages such as : light weight, good elastico - viscosity and membrane formability et al over inorganic and organic solvent electrolytes. It has been made great progress recently. The Application of this materials is mainly in developing all solid state lithium battery and lithium ion battery. This paper reviewed on the character of SPE and how to improve its properties so on. The prospect was also discussed.
摘要:This paper has reviewed the study of physical aging of atactic polystyrene (aPS), list some characterics of model and theory about physical aging, reported the relating results by means of some updated techniques and overviewed the trend of research about aPS's physical aging.
摘要:This review deals with the recent advances in the chemical modification of chitin/chitosan, some properties and application of the resulting derivatives.
摘要:In this paper, the application of photopolymer(2P) coatings for optical disk have been reviewed, it shows that the basic components of relief- forming 2P coating are multifunctional acrylate monomers, the epoxy acrylate oligomers are the optimum choice for protective coatings.
关键词:Photopolymerization;Photocuring coatings;Photoinitiators;Optical disk
摘要:The application of vinyl ether as a new type of reactive diluent for photocuring is reviewed in this article. Different kinds of vinyl ethers , their synthesis as well as applicability in coationgs are described .