Synthesis, characterization and ring-opening polymerization of a novel six-membered cyclic carbonate bearing pendent allyl ether group
Synthesis, characterization and ring-opening polymerization of a novel six-membered cyclic carbonate bearing pendent allyl ether group
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带有烯丙基醚侧基的新型六元环状碳酸酯的合成、表征和开环聚合
DOI：
10.1016/j.polymer.2008.01.025
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发表时间：
2008-03-03
期刊：
影响因子：
4.6
通讯作者：
Zhuo, Ren-Xi
中科院分区：
文献类型：
--
作者：
He, Feng;Wang, Yan-Ping;Zhuo, Ren-Xi
以甘油为原料合成了一种新型的含烯丙基醚侧基的六元环状碳酸酯5-烯丙氧基-1，3-二氧六环-2-酮（ATMC），并在120 ℃下通过本体开环聚合合成了相应的聚碳酸酯聚（5-烯丙氧基-1，3-二氧六环-2-酮）（PATMC）。采用2-乙基己酸锡（Sn（Oct）（2））和二氧化硅颗粒固定化猪胰脂肪酶（IPPL）两种催化剂进行聚合。用FTIR、H-1 NMR、C-13 NMR、GPC和DSC等手段对单体和功能聚合物的结构进行了表征。PATMC的分子量（M-n）随IPPL或Sn（Oct）（2）浓度的增加而迅速下降。在0. 05 mol/L时，PATMC的分子量最高（M-n = 48，700 g/mol），多分散性为1. 31。1重量%浓度的IPPL持续48小时。还实现了环氧化PATMC不饱和键的聚合后氧化反应。含环氧化物的聚合物可以提供进一步改性的设施。(c)2008爱思唯尔有限公司保留所有权利。
A novel six-membered cyclic carbonate with pendent allyl ether group, 5-allyloxy-1,3-dioxan-2-one (ATMC), was synthesized from glycerol, and the corresponding polycarbonate, poly(5-allyloxy-1,3-dioxan-2-one) (PATMC) was further synthesized by ring-opening polymerization in bulk at 120 degrees C. Two kinds of catalyst, tin(II) 2-ethylhexanoate (Sn(Oct)(2)) and immobilized porcine pancreas lipase on silica particles (IPPL), were employed to perform the polymerization. The structures of the novel monomer and the resulting functional polymers were confirmed by FTIR, H-1 NMR, C-13 NMR, GPC and DSC. The molecular weight (M-n) of PATMC decreased rapidly with the increase of IPPL or Sn(Oct)(2) concentration. The highest molecular weight (M-n = 48,700 g/mol) of PATMC with the polydispersity of 1.31 was obtained at 0. 1 wt% concentration of IPPL for 48 h. Postpolymerization oxidation reactions to epoxidize the unsaturated bonds of the PATMC were also achieved. The epoxide-containing polymers could afford facilities for further modification. (c) 2008 Elsevier Ltd. All rights reserved.