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首页> 外文期刊>Journal of Applied Polymer Science >Plasma-Brominated Cyclo-Olefin Polymer Slides: Suitable Macroinitiators for Activator Regenerated by Electron Transfer/Atom Radical Transfer Polymerization
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Plasma-Brominated Cyclo-Olefin Polymer Slides: Suitable Macroinitiators for Activator Regenerated by Electron Transfer/Atom Radical Transfer Polymerization

机译：血浆溴化环烯烃聚合物玻片：适用于通过电子转移/原子自由基转移聚合再生的活化剂的大分子引发剂

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摘要

Activators regenerated by electron transfer–atom radical transfer polymerization (ATRP) as a controlled living polymerization are distinguished by their acceptance of small amounts of transition-metal complexes and oxygen and by their tolerance of reducing agents at a high concentration. The precondition of all ATRP applications is the use of homolytic or heterolytic cleavable halides as a dormant species; this allows the propagation of monomer chains. Hence, alkyl bromides are slightly cleavable and are the preferred initiators for ATRP. The bromination of polymer slides used as macroinitiators was carried out under gentle bromoform plasma conditions. This led to an oxidation-resistant stable bromine layer. More than 20 bromines per 100 carbons on the polymer scaffold were permanently bound to the substrate after plasma treatment. The resulting amounts of secondary and tertiary bromines on the polymer scaffold exhibited a suitable macroinitiator concentration for the surface-initiated polymerization of methyl methacrylate and glycidyl methacrylate.
机译：通过电子转移-原子自由基转移聚合（ATRP）作为受控活性聚合再生的活化剂，其特点是可以接受少量的过渡金属络合物和氧气，并且可以耐受高浓度的还原剂。所有ATRP应用的前提条件是使用均溶或杂溶的可裂解卤化物作为休眠物质。这允许单体链的繁殖。因此，烷基溴是可裂解的，并且是ATRP的优选引发剂。用作大分子引发剂的聚合物玻片的溴化反应在温和的溴仿血浆条件下进行。这导致了抗氧化的稳定溴层。等离子体处理后，聚合物支架上每100个碳中有20个以上的溴永久结合到基质上。聚合物支架上产生的仲和叔溴的量显示出合适的大分子引发剂浓度，用于甲基丙烯酸甲酯和甲基丙烯酸缩水甘油酯的表面引发聚合。

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