專業(yè)英語和文獻檢索Unit1

專業(yè)英語和文獻檢索2023-2023學年第一學期個人情況葉鋒出生年月：1987.6畢業(yè)學校：浙江工業(yè)大學學歷：博士專業(yè)：高分子材料：電子郵箱：地址：自廉樓410

教育經(jīng)歷：2006.9—2023.6紹興文理學院化學化工學院學士2023.9—2023.6浙江工業(yè)大學材料科學與工程學院博士研究方向：超分子自組裝，功能高分子，高性能聚合物，塑料配方的設計及改性研究課題樹枝狀凝膠因子自組裝成納米凝膠網(wǎng)絡原位改性PMMA的研究：將具有自組裝特性的樹枝狀大分子引入到甲基丙烯酸甲酯〔MMA〕中，以此單體作為溶劑使樹枝狀大分子自主裝形成網(wǎng)絡，再在凝膠網(wǎng)絡的存在下實現(xiàn)MMA單體聚合，得到三維有機凝膠網(wǎng)絡增強的原位聚合PMMA復合材料，制得兼具高透明性與優(yōu)異力學性能的新型PMMA復合材料。研究成果研究成果已發(fā)表于SCI、EI雜志《ChemicalCommunications》、《ColloidsandSurfacesA:PhysicochemicalandEngineeringAspects》、《ColloidsandPolymerSciences》、《JournalofMacromolecularScience,PartA:PureAndAppliedChemistry》、《AnnualTechnicalConference》、《MaterialsScienceForum》等10余篇。發(fā)表的局部論文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專業(yè)英語的重要性本科生畢業(yè)設計考研從事高分子專業(yè)工作等SCI、EI論文的撰寫本課程的成績總成績=平時成績〔30%〕+期中成績〔20%〕+期末成績〔50%〕平時成績=考勤+作業(yè)+課堂表現(xiàn)等Unit1:

WhatArePolymers?預習單詞10minpolymer聚合物settle沉淀commonsalt食鹽viscosity黏度macromolecule大分子polyvinylalcohol聚乙烯醇interlink把…相互連接globule小球butadiene丁二烯swell溶脹monomer單體crystal晶體synthetic合成的peculiarity特性polyethylene聚乙烯powdery粉末狀的viscous黏稠的fragment碎片dissolution溶解solvent溶劑saturation飽和dissolve溶解Unit1:

WhatArePolymers?主要內(nèi)容：4局部1.什么是聚合物〔第1段〕；2.聚合物的聚合過程〔第2段〕；3.聚合物的熱性質(zhì)〔第3段〕；4.聚合物的溶解過程〔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過程Thisinterlinkingofmanyunitshasgiventhepolymeritsname,polymeaning‘many’andmermeaning‘part’(inGreek).Asanexample,agaseouscompoundcalledbutadiene,withamolecularweightof54,combinesnearly4000timesandgivesapolymerknownaspolybutadiene(asyntheticrubber)withabout200000molecularweight.Thelowmolecularweightcompoundsfromwhichthepolymersformareknownasmonomers.Thepictureissimplyasfollows:butadiene+butadiene+???+butadiene--→polybutadiene(4000time)第三局部聚合物的熱性質(zhì)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過程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過程Theglobulesofpolyvinylalcoholfirstabsorbwater,swellandgetdistortedinshapeandafteralongtimegointosolution.Also,wecanaddaverylargequantityofthepolymertothesamequantityofwaterwithoutthes