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首页> 外文期刊>Journal of Applied Polymer Science >Studies of crosslinked styrene-alkyl acrylate copolymers for oil absorbency application. I. Synthesis and characterization
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Studies of crosslinked styrene-alkyl acrylate copolymers for oil absorbency application. I. Synthesis and characterization

机译：用于吸油性的交联苯乙烯-丙烯酸烷基酯共聚物的研究。一，合成与表征

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摘要

The prepolymers for a novel oil absorbent were synthesized by copolymerizing styrene with 2-ethylhexyl acrylate (EHA), lauryl acrylate (LA), lauryl methacrylate (LMA), and stearyl acrylate (SA). Suspension polymerization was carried out using benzoyl peroxide (BPO) as an initiator with a varying monomer feed ratio, and the copolymers were characterized by FTIR, H-1-NMR, DSC, and a solubility test. The copolymers were random copolymers with a single phase, and their compositions were similar to those in the monomer feed. The T-g of the copolymer could be controlled by varying the styrene/acrylate ratio. Acrylates introduced the crosslinking to linear polymers as a side reaction. Crosslinked copolymers were synthesized by adding divinylbenzene (DVB) as a crosslinking agent. At a low degree of crosslinking (0.5 wt % DVB), the T-g of the crosslinked copolymers was lower than or similar to that of the uncrosslinked ones. At a high degree of crosslinking, the T-g increased with increasing crosslinking density. (C) 2000 John Wiley & Sons, Inc. [References: 19]
机译：通过使苯乙烯与丙烯酸2-乙基己酯（EHA），丙烯酸月桂酯（LA），甲基丙烯酸月桂酯（LMA）和丙烯酸硬脂酯（SA）共聚来合成用于新型吸油剂的预聚物。使用过氧化苯甲酰（BPO）作为引发剂，以不同的单体进料比例进行悬浮聚合，并通过FTIR，H-1-NMR，DSC和溶解度测试对共聚物进行表征。该共聚物是具有单相的无规共聚物，其组成与单体进料中的组成相似。共聚物的T-g可以通过改变苯乙烯/丙烯酸酯的比例来控制。丙烯酸酯作为副反应将交联引入线性聚合物。通过添加二乙烯基苯（DVB）作为交联剂来合成交联共聚物。在低交联度（0.5wt％DVB）下，交联共聚物的T-g低于或类似于未交联共聚物的T-g。在高交联度下，T-g随交联密度的增加而增加。 （C）2000 John Wiley＆Sons，Inc. [参考：19]

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