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Design and preparation of cross-linked alpha-methylstyrene acrylonitrile copolymer nanoparticles and their interfacial investigation with rubber

机译:交联的α-甲基苯乙烯丙烯腈共聚物纳米粒子的设计,制备及与橡胶的界面研究

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摘要

Cross-linked -methylstyrene and acrylonitrile (MStAN) copolymer particles in a latex form were synthesized by free radical emulsion polymerization. The particles showed a narrow size distribution and an average diameter of 65 nm. The amount of the vinyl groups at the surface of the (MStAN) copolymer particles resulted from varied amount of the initiator (APS) and the cross-linking agent (DVB) was detected by iodine titration method. When filled into ethylene propylene rubber (EPR), the MStAN nano-particles exhibited excellent reinforcing capabilities, and with the increase of the vinyl groups at the surface of MStAN particles, the tensile stress of MStAN/EPR increased. Results demonstrated that the vinyl groups at the surface of the (MStAN) copolymer particles provided certain chemical interactions between the filler particles and the macromolecular chains of rubber matrix. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41914.
机译:通过自由基乳液聚合合成了胶乳形式的交联的甲基苯乙烯和丙烯腈(MStAN)共聚物颗粒。颗粒显示出窄的尺寸分布,平均直径为65nm。 (MStAN)共聚物颗粒表面的乙烯基含量是由碘滴定法检测到的引发剂(APS)和交联剂(DVB)含量不同引起的。当填充到乙丙橡胶(EPR)中时,MStAN纳米颗粒表现出出色的补强能力,并且随着MStAN颗粒表面乙烯基的增加,MStAN / EPR的拉伸应力增加。结果表明,(MStAN)共聚物颗粒表面的乙烯基在填料颗粒与橡胶基体的大分子链之间提供了一定的化学相互作用。 (c)2015 Wiley Periodicals,Inc. J. Appl。 Polym。科学2015,132,41914。

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