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1、AdvancesinMaterialChemistry材料化学前沿,2018,6(2),11-19PublishedOnlineApril2018inHans.http://www.hanspub.org/journal/amchttps://doi.org/10.12677/amc.2018.62002PreparationofUniformPolyureaMicrospheresthroughPrecipitationPolymerizationandTheirCharacterizationBinLi,HongyanC
2、ao,XiangzhengKong,XubaoJiang*CollegeofChemistryandChemicalEngineering,UniversityofJinan,JinanShandongthndthReceived:Feb.18,2018;accepted:Mar.2,2018;published:Mar.7,2018AbstractUniformpolyurea(PU)microsphereswerepreparedthroughprecipitationpolymerizationusingisophor
3、onediisocyanate(IPDI)astheonlymonomerinmixedsolventofwater-acetone(H2O-AT)orwater-acetonitrile(H2O-AN)undershakingorwithaquiescentprocess.TheeffectsofIPDIloading,H2O/ATandH2O/ANmassratioontheformationofPUmicrosphereswerestudied,andthepropertiesofthemicrospheresobta
4、inedweretested.TheresultsshowedthattheyieldandsizeofthemicrospheresincreasedwiththeamountofIPDIadded.Theyieldofthemicrospheresobtainedwasbasicallythesameundershakingorquiescentprocess,whilehigherIPDIloadingwithbetteruniformityofthemicrosphereswasachievedunderthequi
5、escentprocess.Togetuni-formPUmicrospheresinH2O-ATmixtureunderthequiescentcondition,themaximalIPDIloadingwas11.0wt%withtheyieldofthemicrospheresof88.5%.Withacetonereplacedbyacetonitrile,themaximalIPDIloadingreached21.0%combinedwithayieldof93.1%,asignificantincreasei
6、ntheproductivityofthemicrospheresincomparisonwiththeyieldobtainedbypolymerizationinH2O-ATmixture.InfraredandthermogravimetricdatashowedthatthePUmicrosphereswererichinaminegroups,andofhigherthermalstability.KeywordsPrecipitationPolymerization,UniformMicrospheres,Sph
7、ereYield,Polyurea,AmineGroups沉淀聚合制备单分散聚脲微球及其表征*李彬，曹红岩，孔祥正，姜绪宝济南大学化学化工学院，山东济南*通讯作者。文章引用:李彬,曹红岩,孔祥正,姜绪宝.沉淀聚合制备单分散聚脲微球及其表征[J].材料化学前沿,2018,6(2):11-19.DOI:10.12677/amc.2018.62002李彬等收稿日期：2018年2月18日；录用日期：2018年3月2日；发布日期：2018年3月7日摘要以异佛尔酮二异氰酸酯(IPDI)为单体，在水与丙酮或水与乙腈的混合溶剂中通过沉淀聚合
8、制备了单分散聚脲(PU)微球。探讨了单体用量和混合溶剂种类及其配比对微球产率及粒径等的影响，并对静置与振荡两种聚合条件下的聚合过程进行了比较，通过红外和热失重对微球进行了表征。结果表明，微球产率及粒径随单体用量逐渐增加。当水/丙酮质量比及IPDI用量相同时，静置和振荡两种聚合方式下所得微球
