Study of structure and thermal properties of styrene-butylacrylate copolymer with OMMT nanocomposite emulsions

Iranian Chemical Communication Pub Date : 2017-11-22 DOI:10.33945/SAMI/ECC.2019.1.5

M. Oftadeh, Fahad Hajati, Mortaza Jamshidi, H. J. Naghash

引用次数: 1

Abstract

(St-co-BA) polymer through montmorillonite (MMT) nanocomposite emulsion is prepared by ‎in situ intercalative emulsion polymerization of styrene (St), butyl acrylate (BA) in the ‎presence of organic modified montmorillonite (OMMT) with different OMMT contents (0, ‎‎0.5, 1.0, 1.5, and 2.0 wt%). The synthetic compounds are characterized by FTIR, XRD. The ‎nanocomposite emulsions are characterized by applying FTIR, SEM, TEM, TGA and DSC ‎techniques in order to investigate the structure and the thermal properties of the coplymer. ‎The properties of the nanocomposite emulsions containing OMMT are better than styrene-‎acrylate emulsion. The study of monomer conversion versus time and different OMMT ‎contents indicates that the polymerization rate is decreased by increasing the concentration of ‎styrene and OMMT. Consequently the properties of the nanocomposite emulsion containing 1 ‎wt % OMMT are better than other contents. ‎

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苯乙烯-丁丙酸酯共聚物与OMMT纳米复合乳液的结构和热性能研究

以苯乙烯(St)、丙烯酸丁酯(BA)为原料，在不同重量分数(0、0.5、1.0、1.5、2.0 wt%)的有机改性蒙脱土(OMMT)存在下，通过原位插层乳液聚合制备了(St-co-BA)蒙脱土(MMT)纳米复合乳液。用FTIR、XRD对合成的化合物进行了表征。采用红外光谱(FTIR)、扫描电镜(SEM)、透射电镜(TEM)、热重分析(TGA)和差热分析(DSC)等技术对纳米复合乳液进行了表征，研究了聚合物的结构和热性能。含有OMMT的纳米复合乳液的性能优于苯乙烯-丙烯酸酯乳液。单体转化率随时间的变化及不同OMMT含量的变化研究表明，随着-苯乙烯和OMMT浓度的增加，聚合速率降低。因此，含1′wt % OMMT的纳米复合乳液的性能优于其他含量。‎

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Iranian Chemical Communication CHEMISTRY, MULTIDISCIPLINARY-

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