含氟疏水缔合聚丙烯酰胺的制备及溶液性质研究.pdf

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1、第26卷第2期化学研究与应用Vo1．26．No．22014年2月ChemicalResearchandApplicationFeb．，2014文章编号：1004-1656(2014)02-02004)5含氟疏水缔合聚丙烯酰胺的制备及溶液性质研究李刚辉，龚雪梅，李宁(陕西科技大学轻化工助剂化学与技术教育部重点实验，陕西西安710021)摘要：以异佛尔酮二异氰酸酯(IPDI)、四氟丙醇(FOH)和烯丙基聚乙二醇(APEG1200)为原料合成了含氟表面活性单体(FSM)，并以FSM为疏水单体，在它的胶束溶液中实现了其与丙烯酰胺(AM)和2一丙烯酰胺基-2一甲基丙磺酸(AMPS)的水溶液

2、共聚合，制备出含氟疏水缔合聚丙烯酰胺(FAPAM)。采用流变仪研究了FA—PAM水溶液的疏水缔合性能，并考察了盐、剪切率和温度对FAPAM缔合性能的影响。结果表明，FAPAM水溶液的疏水缔合性能受FSM含量的影响，具有一定的耐盐性。FAPAM属于假塑性体系，表现出较强的抗剪切性能。适当升高温度对FAPAM水溶液的疏水缔合有一定的促进作用。关键词：含氟表面活性单体；聚丙烯酰胺；疏水缔合；缔合性能中图分类号：0632．52文献标志码：AStudyonpreparationandsolutionpropertiesoffluorinatedhydrophobicallyassociat

3、ingpolyacrylamideLIGang—hui，GONGXue-mei，LINing(KeyLaboratoryofAuxiliaryChemistry&TechnologyforChemicalIndustry，MinistryofEducation，ShaanxiUniversityofScience&Technology，Xi’an710021，China)Abstract：Afluorinatedsurface—activemonomer(FSM)thatbased0nisophoronediisocyanate(IPDI)，dodecafluoroheptano

4、l(FOH)andallylpolyethyleneglycol(APEG1200)waspreparedfirstly，thenfluorinatedwater-solubleassociatingpolyacrylamide(FAPAM)wascopolymerizedwithFSMand2-acrylicamide-2methylpropylsulfonicacid(AMPS)．ThehydrophobicallyassociativepropertiesofFAPAMwerestudiedbyrheology．Theinfluencesofsalt，shearratean

5、dtemperatureonrheologicalbehaviorsofFAPAMwerealsoreported．TheresultsshowthemicellarcopolymerizationofAMandhydrophobicmonomercanbefavorablyrealizedwiththeself-madepolymerizablesurfactantFSM．ThehydrophobicallyassociativepropertiesofFAPAMareaffectedbythecontentofFSM．ThemoreFSMcontent，thestronger

6、hydrophobicallyassociativepropertiesare．HoweverexcessiveFSMisadversetotheirassociativeproperties．TheapparentviscositiesofFAPAMbrinesolutionsarehigherthanthatoftheircorrespondingwatersolutionswithin—creasingNaC1concentrationatacertainrange，whichindicateFAPAMpossesssaltresistancetosomeextent．Ad

7、ditionally，FAPAMsolutionsarepseudoplasticfluidandexhibitstrongershearingresistance．Atthesametime，arelativelyhightemperaturecouldaidtheintermolecularassociationofFAPAMandimprovetheirheatresistance．Keywords：fluorinatedsuiface—activemonomer；poly