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首页> 外文期刊>Journal of Applied Polymer Science >Copolymers from methyl methacrylate and butyl acrylate with hyperbranched architecture
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Copolymers from methyl methacrylate and butyl acrylate with hyperbranched architecture

机译：由甲基丙烯酸甲酯和丙烯酸丁酯的共聚物与超支体建筑

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摘要

This is a first report of the synthesis and characterization of acrylic copolymers from methyl methacrylate (MMA) and butyl acrylate (BA) with hyperbranched architecture. The copolymers were synthesized using a free radical polymerization (Strathclyde method) in emulsion technique. Divinyl benzene was used as the brancher which acted as a comonomer and 1-dodecanethiol was used as a chain terminating agent. A linear copolymer from MMA and BA was also synthesized for comparison. The hyperbranched architecture was established from spectroscopic and rheological measurements. The gel permeation chromatography showed all hyperbranched copolymers were low molecular weight with lower polydispersity index (PDI) ((M) over bar (n) similar to 23,000, PDI similar to 2.00) compared to the linear grade ((M) over bar (n) similar to 93,000, PDI similar to 2.20). They were more spherical and achieved lower viscosity (yet higher solubility, >90%) than the linear grade (<50%) which was mostly open ended. Lower viscosity at equivalent solid content made the hyperbranched polymers a potential binder for adhesive and coating application. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45356.
机译：这是从甲基丙烯酸甲酯（MMA）和丙烯酸丁酯（BA）的丙烯酸共聚物的合成和表征与超支建筑学的第一报告。在乳液技术中使用自由基聚合（STRASHCLYDE方法）合成共聚物。使用二乙烯基苯作为用作共聚单体的分支器，用1-十二烷硫醇用作链终止剂。还合成了MMA和BA的线性共聚物以进行比较。从光谱和流变测量建立超支化建筑。凝胶渗透色谱表明，与线性等级（（M）上方的杆（N）相比，凝胶渗透色谱表明所有超抗枝状共聚物的低分子量为低分子量）类似于93,000，PDI类似于2.20）。它们比线性等级（<50％）更加球形，并实现较低的粘度（较高的溶解度，> 90％），其主要是开放的线性等级（<50％）。等效固体含量下粘度降低，使超支化聚合物成为粘合剂和涂料施用的潜在粘合剂。 （c）2017 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2017,134,45356。

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