CAJ | 학술논문

采用无皂乳液聚合法制备聚苯乙烯（PS）微球，将所制备的PS微球经磺化吸水后，利用钛酸丁酯作前驱体在乙醇中反应，使TiO2包覆在磺化苯乙烯微球表面，得到有机-无机Ps／TiO2复合微球。在所得的杂化微球表面接枝上可聚官能团，利用无皂乳液聚合将聚甲基丙烯酸甲酯聚合到微球表面，得到核-壳-壳杂化微球。用FT—IR、SEM和TGA等方法对所制得的复合微球进行表征。结果表明PS、PS／TiO2及PS／TiO2／PMMA微球表面光滑，球形度好，单分散性良好；通过改变TBOT的加入量可以控制TiO。对PS微球的包覆厚度。
채용무조유액취합법제비취분을희（PS）미구，장소제비적PS미구경광화흡수후，이용태산정지작전구체재을순중반응，사TiO2포복재광화분을희미구표면，득도유궤-무궤Ps／TiO2복합미구。재소득적잡화미구표면접지상가취관능단，이용무조유액취합장취갑기병희산갑지취합도미구표면，득도핵-각-각잡화미구。용FT—IR、SEM화TGA등방법대소제득적복합미구진행표정。결과표명PS、PS／TiO2급PS／TiO2／PMMA미구표면광활，구형도호，단분산성량호；통과개변TBOT적가입량가이공제TiO。대PS미구적포복후도。
A series of polystyrene microspheres was prepared via soap-free emulsion polymerization. Polystyrene microspheres was sulphonated, absorbed water and then the reaction was happened between sulfonated polysty- rene and TiO2 in ethanol with TBOT as a reaction precursor, the surface of sulphonated polystyrene micro- spheres was covered by TiO2 and organic-inorganic compound microspheres was acquired. Tangible functional group was grafted on compound microspheres surface, and core-shell -shell heterozygosity microspheres was ob- tained by grafting methyl methacrylate （MMA） on heterozygosity microspheres surface with soap-free emulsion polymerization. The organic-inorganic compound microspheres were characterized by means of Fourier trans- form infrared spectrometer, scanning electron microscope and thermal gravimetric analysis etc. The results show that PS,PS/TiO2 and PS/TiO2/PMMA microspheres surface smooth, spherical degree good and single good dispersancy;controllable shell thickness by change of the quantity of TBOT to PS/TiO2 composite micro- spheres.