简介：在tetrahydrofuran(THF)的生活cationic戒指洞聚合期间的单体集中的方便即时监视与甲基triflate(MeOTf)开始了的A为平衡单体集中的运动调查和决心被开发了([M]e)经由在在联合的situFTIR光谱学与一颗钻石付小费给的稀释全部的反射(ATR)沉浸探查。聚合率从ln的线性斜坡是关于单体集中和开始者集中的第一份订单([M]<潜水艇class=“a-plus-plus”>0-[M]e)/([M]-[M]在在各种各样的溶剂的不同温度的e)对聚合时间。[M]<潜水艇class=“a-plus-plus”>当与增加聚合温度指数地增加了时，e与起始的单体集中线性地减少了。平衡强烈也取决于有单体的溶剂极性和它的相互作用。平衡聚合时间(t<潜水艇class=“a-plus-plus”>e)与增加溶剂极性减少了并且与增加线性地减少了[M]<潜水艇class=“a-plus-plus”>在有到当溶剂不在时的体积聚合的一样的点的不同斜坡的三溶剂的0。M的方程n，e=72.1/(0.14-0.04[M]e)被建立了为数字一般水准为预言提供一条简单、有效的途径以平衡状态的polyTHFs的分子的重量(Mn，在在0o犀?犀?犈?犈的THF的平衡生活cationic戒指洞聚合的e)？？

简介：Spinodalphaseseparationbehaviorofpoly(methylmethacrylate)/poly(styrene-co-acrylonitrile)(PMMA/SAN)blendswasinvestigatedbythetime-resolvedsmallanglelightscattering(SALS)technique.Itwasfoundthattheinfluenceoftemperatureonthescatteringintensityevolutionfollowedthetime-temperaturesuperpositionprinciple.TherelationshipbetweentemperatureandtherelaxationtimeofscatteringintensityI(t)canbewelldescribedbytheWilliams-Landel-Ferry(WLF)function.

简介：Theeffectofsinteringdispersedandbulk,lowmolecularweight(Mn=50,000Da),nano-emulsionpolytetrafluoroethylene(PTFE)particlesneartheirmeltingpointisdescribed.Withthenascentparticlesconsistingofca.75nmdiameter,hexagonal,singlecrystals,sinteringat,e.g.,350℃,results,initially,inmergerofneighboringparticles,followedbyindividualmolecularmotiononthesubstrateandtheformationoffoldedchain,lamellarsinglecrystalsandspherulites,andon-edgeribbons.Itissuggestedthesestructuresdevelop,withtime,inthemesomorphic'melt'.Sinteringofthebulkresinyieldsextendedchain,bandstructures,aswellasfoldedchainlamellae;end-surfacetoend-surfacemerger,possiblybyend-to-endpolymerization,occurswithincreasingtime.