Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey.
Department of Chemistry, Faculty of Engineering and Natural Sciences, Bursa Technical University, 16310, Bursa, Turkey.
Macromol Rapid Commun. 2018 Sep;39(18):e1800464. doi: 10.1002/marc.201800464. Epub 2018 Aug 9.
A facile strategy for synthesizing block copolymers by the combination of two different living polymerization techniques, namely, photoinduced radical oxidation/addition/deactivation (PROAD) and iniferter processes is described. In the first step, PROAD polymerization of isobutyl vinyl ether using bromotriphenylmethane, dimanganese decacarbonyl (Mn (CO) ), and diphenyliodonium bromide (Ph I Br ) is carried out to yield polymers with triphenylmethyl (trityl) end groups. These prepolymers are used as macroiniferters in thermally induced free radical polymerization of vinyl monomers such as methyl methacrylate, tert-butyl acrylate, and styrene, resulting in the formation of corresponding block copolymers free from homopolymers. The precursor polymer and final block copolymers are characterized by H NMR, FT-IR, GPC, and DSC analyses.
一种通过两种不同的聚合技术——光诱导自由基氧化/加成/失活（PROAD）和引发转移终止剂（iniferter）相结合来合成嵌段共聚物的简便策略被描述。在第一步中，使用溴代三苯基甲烷、二锰十羰基（Mn(CO)）和二苯基碘鎓溴化物（Ph I Br）进行异丁基乙烯基醚的 PROAD 聚合，得到具有三苯基甲基（三苯甲基）端基的聚合物。这些预聚物可用作热诱导自由基聚合甲基丙烯酸甲酯、叔丁基丙烯酸酯和苯乙烯等乙烯基单体的大分子引发剂，从而形成无均聚物的相应嵌段共聚物。通过 1H NMR、FT-IR、GPC 和 DSC 分析对前体聚合物和最终嵌段共聚物进行了表征。
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