专业英语和文献检索Unit1

专业英语和文件检索-年第一学期1/17个人情况叶锋出生年月：1987.6毕业学校：浙江工业大学学历：博士专业：高分子材料电话661283电子邮箱：yefeng061@126.comQQ:916656229地址：自廉楼410

2/17教育经历：

.9—.6绍兴文理学院化学化工学院学士

.9—.6浙江工业大学材料科学与工程学院博士研究方向：超分子自组装，功效高分子，高性能聚合物，塑料配方设计及改性3/17研究课题树枝状凝胶因子自组装成纳米凝胶网络原位改性PMMA研究：

将含有自组装特征树枝状大分子引入到甲基丙烯酸甲酯（MMA）中，以此单体作为溶剂使树枝状大分子自主装形成网络，再在凝胶网络存在下实现MMA单体聚合，得到三维有机凝胶网络增强原位聚合PMMA复合材料，制得兼具高透明性与优异力学性能新型PMMA复合材料。4/17研究结果研究结果已发表于SCI、EI杂志《ChemicalCommunications》、《ColloidsandSurfacesA:PhysicochemicalandEngineeringAspects》、《ColloidsandPolymerSciences》、《JournalofMacromolecularScience,PartA:PureAndAppliedChemistry》、《AnnualTechnicalConference》、《MaterialsScienceForum》等10余篇。5/17发表部分论文1.FengYe,SiChen,GuodongTangandXuWang,Sonicationinducedmorphologicaltransformationbetween3Dgelnetworkandglobularstructureinatwo-componentgelationsystem[J].ColloidsandSurfacesa-PhysicochemicalandEngineeringAspects,,452,1652.FengYe,SiChen,GuodongTang,MengMaandXuWang,Self-assemblednanofibrillargelnetworktoughenedPMMAnanocompositebyin-situthermalpolymerizationofMMAgel[J].ColloidsandSurfacesa-PhysicochemicalandEngineeringAspects(Acceptedby/03/19)3.FengYe,SiChen,GuodongTang,BozhenWu,MengMa,YanqinShiandXuWang,Thesynthesisoftwo-componentdendriticgelatorsandtheirself-assemblybehaviorinMMA[J].MaterialsScienceForum,,815:551-5564.FengYe,SiChen,GuodongTang,BozhenWu,MengMa,YanqinShiandXuWang,L-lysine-baseddendriticgelatormodifiedPMMAnanocomposite[J].MaterialsScienceForum,,815:539-5445.FengYe,SiChen,MengMa,BozhenWu,YanqinShiandXuWang,Thixotropicandself-healingtriggeredreversiblerheologyswitchinginaPOSS-basedorganogelwithaloofah-likegelnetwork[J].Tetrahedronletters.6.FengYe,SiChen,MengMa,BozhenWu,YanqinShiandXuWang,Morphology,toughnessmechanismandopticalpropertiesofPMMAcompositethroughembeddingcholesterol-basedgelator[J].RareMetalMaterialsandEngineering.7.SiChen,FengYe,GuodongTangandXuWang,HighToughnessandLightTransmittanceofPMMACompositePreparedviaIn-SituPolymerizationwithIncorporatingSelf-AssembledDendriticGelNetworks[J].,51,1738.SiChen,FengYe,GuodongTang,BozhenWu,MengMa,YanqinShiandXuWang,TheSelf-assemblyMechanismofdendriticgelatorsinmethylmethacrylate[J].AnnualTechnicalConference(Accepted).9.GuodongTang,SiChen,FengYe,MengMa,XiaopengXu,JingFangandXuWang,Loofah-likegelnetworkformedbytheselfassemblyofa3Dradiallysymmetricalorganic–inorganichybridgelator[J].ChemicalCommunications,,50,71806/17专业英语主要性本科生毕业设计考研从事高分子专业工作等SCI、EI论文撰写7/17本课程成绩总成绩=平时成绩（30%）+期中成绩（20%）+期末成绩（50%）平时成绩=考勤+作业+课堂表现等8/17Unit1:

WhatArePolymers?预习单词10minpolymer聚合物settle沉淀commonsalt食盐viscosity黏度macromolecule大分子polyvinylalcohol聚乙烯醇interlink把…相互连接globule小球butadiene丁二烯swell溶胀monomer单体crystal晶体synthetic合成peculiarity特征polyethylene聚乙烯powdery粉末状viscous黏稠fragment碎片dissolution溶解solvent溶剂saturation饱和dissolve溶解9/17Unit1:

WhatArePolymers?主要内容：4部分1.什么是聚合物（第1段）；2.聚合物聚合过程（第2段）；3.聚合物热性质（第3段）；4.聚合物溶解过程（第4段）10/17第一部分什么是聚合物？Whatarepolymers?Foronething,theyarecomplexandgiantmoleculesandaredifferentfromlowmolecularweightcompoundslike,say,commonsalt.Tocontrastthedifference,themolecularweightofcommonsaltisonly58.5,whilethatofapolymercanbeashighasseveralhundredthousand,evenmorethanthousandthousands.Thesebigmoleculesor‘macro-molecules’aremadeupofmuchsmallermolecules,canbeofoneormorechemicalcompounds.Toillustrate,imaginethatasetofringshasthesamesizeandismadeofthesamematerial.Whenthesethingsareinterlinked,thechainformedcanbeconsideredasrepresentingapolymerfrommoleculesofthesamecompound.Alternatively,individualringscouldbeofdifferentsizesandmaterials,andinterlinkedtorepresentapolymerfrommoleculesofdifferentcompounds.11/17第二部分聚合物聚合过程Thisinterlinkingofmanyunitshasgiventhepolymeritsname,polymeaning‘many’andmermeaning‘part’(inGreek).Asanexample,agaseouscompoundcalledbutadiene,withamolecularweightof54,combinesnearly4000timesandgivesapolymerknownaspolybutadiene(asyntheticrubber)withabout00molecularweight.Thelowmolecularweightcompoundsfromwhichthepolymersformareknownasmonomers.Thepictureissimplyasfollows:butadiene+butadiene+∙∙∙+butadiene--→polybutadiene(4000time)12/17第三部分聚合物热性质Onecanthusseehowasubstance(monomer)withassmallamoleculeweightas54growtobecomeagiantmolecule(polymer)of(54×4000≈)200000molecularweight.Itisessentiallythe‘giantness’ofthesizeofthepolymermoleculethatmakesitsbehaviordifferentfromthatofacommonlyknownchemicalcompoundsuchasbenzene.Solidbenzene,forinstance,meltstobecomeliquidbenzeneat5.5℃and,onfurtherheating,boilsintogaseousbenzene.Asagainstthiswell-definedbehaviorofasimplechemicalcompound,apolymerlikepolyethylenedoesnotmeltsharplyatoneparticulartemperatureintocleanliquid.Instead,itbecomesincreasinglysofterand,ultimately,turnsintoaveryviscous,tackymoltenmass.Furtherheatingofthishot,viscous,moltenpolymerdoesconvertitintovariousgasesbutitisnolongerpolyethylene.13/17第四部分聚合物溶解过程Anotherstrikingdifferencewithrespecttothebehaviorofapolymerandthatofalowmolecularweightcompoundconcernsthedissolutionprocess.Letustake,forexample,sodiumchlorideandadditslowlytoafixedquantityofwater.Thesalt,whichrepresentsalowmolecularweightcompound,dissolvesinwateruptoapoint(calledsaturationpoint)but,thereafter,anyfurtherquantityaddeddoesnotgointosolutionbutsettlesatthebottomandjustremainsthereassolid.Theviscosityofthesaturatedsaltsolutionisnotverymuchdifferentfromthatofwater.Butifwetakeapolymerinstead,say,polyvinylalcohol,andaddittoafixedquantityofwater,thepolymerdoesnotgointosolutionimmediately.14/17第四部分聚合物溶解过程Theglobulesofpolyvinylalcoholfirstabsorbwater,swellandgetdistortedinshapeandafteralongtimegointosolution.Also,wecanaddaverylargequantityofthepolymertothesamequantityofwaterwithoutt