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首页> 外文期刊>Journal of Macromolecular Science. Pure and Applied Chemistry >Atom transfer radical polymerization of glycidyl methacrylate (GMA) in Emulsion
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Atom transfer radical polymerization of glycidyl methacrylate (GMA) in Emulsion

机译：乳液中甲基丙烯酸缩水甘油酯（GMA）的原子转移自由基聚合

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摘要

This investigation reports atom transfer radical polymerization (ATRP) of glycidyl methacrylate (GMA) and its copolymerization with butyl methacrylate (BMA) in emulsion. Poly(glycidyl methacrylate) (PGMA) was prepared in emulsion using copper bromide (CuBr) as catalyst in combination with 2,2-bypyridine (bpy) as ligand and methyl 2-bromopropionate (MBrP) as initiator. Different surfactants of Triton series (such as Triton X-100, Triton X-405) were used as emulsifier in these cases. The copolymerization of GMA with BMA was also performed successfully in emulsion via ATRP using the same reaction conditions used for the preparation of PGMA. The stability of the latexes prepared via emulsion ATRP was examined. TEM analysis was carried out to examine the particles sizes of polymer in the latex. Molecular weights and molecular weight distributions of the polymers were determined by GPC analysis. The FT-IR and 1H-NMR analyses indicated that the pendant glycidyl group of PGMA was unaffected during emulsion ATRP. Thermal stability of the polymer was evaluated by thermogravimetric analysis (TGA). Copolymer composition in the copolymer was calculated from the 1H-NMR analysis.
机译：这项研究报告了甲基丙烯酸缩水甘油酯（GMA）的原子转移自由基聚合（ATRP）及其与乳液中的甲基丙烯酸丁酯（BMA）的共聚。以溴化铜（CuBr）为催化剂，配以2,2-吡啶（bpy）为配体，以2-溴丙酸甲酯（MBrP）为引发剂，通过乳液制备聚甲基丙烯酸缩水甘油酯（PGMA）。在这些情况下，使用了不同的Triton系列表面活性剂（例如Triton X-100，Triton X-405）作为乳化剂。 GMA与BMA的共聚反应也通过ATRP在乳液中成功进行，使用的反应条件与PGMA的制备相同。检查了通过乳液ATRP制备的胶乳的稳定性。进行TEM分析以检查胶乳中聚合物的粒度。通过GPC分析确定聚合物的分子量和分子量分布。 FT-IR和1H-NMR分析表明，在乳液ATRP期间，PGMA的侧基缩水甘油基不受影响。聚合物的热稳定性通过热重分析（TGA）评估。共聚物中的共聚物组成由1 H-NMR分析算出。

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