专业英语和文献检索Unit1

专业英语和文献检索2023-2023学年第一学期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：电子邮箱：地址：自廉楼410

教育经历：2006.9—2023.6绍兴文理学院化学化工学院学士2023.9—2023.6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，功能高分子，高性能聚合物，塑料配方的设计及改性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的研究：将具有自组装特性的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，再在凝胶网络的存在下实现MMA单体聚合，得到三维有机凝胶网络增强的原位聚合PMMA复合材料，制得兼具高透明性与优异力学性能的新型PMMA复合材料。研究成果研究成果已发表于SCI、EI杂志《ChemicalCommunications》、《ColloidsandSurfacesA:PhysicochemicalandEngineeringAspects》、《ColloidsandPolymerSciences》、《JournalofMacromolecularScience,PartA:PureAndAppliedChemistry》、《AnnualTechnicalConference》、《MaterialsScienceForum》等10余篇。发表的局部论文1.FengYe,SiChen,GuodongTangandXuWang,Sonicationinducedmorphologicaltransformationbetween3Dgelnetworkandglobularstructureinatwo-componentgelationsystem[J].ColloidsandSurfacesa-PhysicochemicalandEngineeringAspects,2023,452,1652.FengYe,SiChen,GuodongTang,MengMaandXuWang,Self-assemblednanofibrillargelnetworktoughenedPMMAnanocompositebyin-situthermalpolymerizationofMMAgel[J].ColloidsandSurfacesa-PhysicochemicalandEngineeringAspects(Acceptedby2023/03/19)3.FengYe,SiChen,GuodongTang,BozhenWu,MengMa,YanqinShiandXuWang,Thesynthesisoftwo-componentdendriticgelatorsandtheirself-assemblybehaviorinMMA[J].MaterialsScienceForum,2023,815:551-5564.FengYe,SiChen,GuodongTang,BozhenWu,MengMa,YanqinShiandXuWang,L-lysine-baseddendriticgelatormodifiedPMMAnanocomposite[J].MaterialsScienceForum,2023,815:539-5445.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].2023,51,1738.SiChen,FengYe,GuodongTang,BozhenWu,MengMa,YanqinShiandXuWang,TheSelf-assemblyMechanismofdendriticgelatorsinmethylmethacrylate[J].AnnualTechnicalConference(Accepted).9.GuodongTang,SiChen,FengYe,MengMa,XiaopengXu,JingFangandXuWang,Loofah-likegelnetworkformedbytheselfassemblyofa3Dradiallysymmetricalorganic–inorganichybridgelator[J].ChemicalCommunications,2023,50,7180专业英语的重要性本科生毕业设计考研从事高分子专业工作等SCI、EI论文的撰写本课程的成绩总成绩=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Unit1:

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合成的peculiarity特性polyethylene聚乙烯powdery粉末状的viscous黏稠的fragment碎片dissolution溶解solvent溶剂saturation饱和dissolve溶解Unit1:

WhatArePolymers?主要内容：4局部1.什么是聚合物〔第1段〕；2.聚合物的聚合过程〔第2段〕；3.聚合物的热性质〔第3段〕；4.聚合物的溶解过程〔第4段〕第一局部什么是聚合物？Whatarepolymers?Foronething,theyarecomplexandgiantmoleculesandaredifferentfromlowmolecularweightcompoundslike,say,commonsalt.Tocontrastthedifference,themolecularweightofcommonsaltisonly58.5,whilethatofapolymercanbeashighasseveralhundredthousand,evenmorethanthousandthousands.Thesebigmoleculesor‘macro-molecules’aremadeupofmuchsmallermolecules,canbeofoneormorechemicalcompounds.Toillustrate,imaginethatasetofringshasthesamesizeandismadeofthesamematerial.Whenthesethingsareinterlinked,thechainformedcanbeconsideredasrepresentingapolymerfrommoleculesofthesamecompound.Alternatively,individualringscouldbeofdifferentsizesandmaterials,andinterlinkedtorepresentapolymerfrommoleculesofdifferentcompounds.第二局部聚合物的聚合过程Thisinterlinkingofmanyunitshasgiventhepolymeritsname,polymeaning‘many’andmermeaning‘part’(inGreek).Asanexample,agaseouscompoundcalledbutadiene,withamolecularweightof54,combinesnearly4000timesandgivesapolymerknownaspolybutadiene(asyntheticrubber)withabout200000molecularweight.Thelowmolecularweightcompoundsfromwhichthepolymersformareknownasmonomers.Thepictureissimplyasfollows:butadiene+butadiene+∙∙∙+butadiene--→polybutadiene(4000time)第三局部聚合物的热性质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.第四局部聚合物的溶解过程Anotherstrikingdifferencewithrespecttothebehaviorofapolymerandthatofalowmolecularweightcompoundconcernsthedissolutionprocess.Letustake,forexample,sodiumchlorideandadditslowlytoafixedquantityofwater.Thesalt,whichrepresentsalowmolecularweightcompound,dissolvesinwateruptoapoint(calledsaturationpoint)but,thereafter,anyfurtherquantityaddeddoesnotgointosolutionbutsettlesatthebottomandjustremainsthereassolid.Theviscosityofthesaturatedsaltsolutionisnotverymuchdifferentfromthatofwater.Butifwetakeapolymerinstead,say,polyvinylalcohol,andaddittoafixedquantityofwater,thepolymerdoesnotgointosolutionimmediately.第四局部聚合物的溶解过程Theglobulesofpolyvinylalcoholfirstabsorbwater,swellandgetdistortedinshapeandafteralongtimegointosolution.Also,wecanaddaverylargequantityofthepolymertothesamequantityofwaterwithoutthes