利用负载戊二酸锌(s-ZnGA)催化二氧化碳(CO2)、环氧丙烷(PO)和邻苯二甲酸酐(PA)三元共聚反应,得到一种新型的三元聚合物聚碳酸亚丙酯苯酐(PPCPA).用核磁共振谱(1H-NMR和13C-NMR)表征了聚合物结构.研究了PPCPA的热性能和力学性能,结果表明,PA的引入可以提高聚碳酸亚丙酯(PPC)的热稳定性能和力学性能,随着PA含量的增加,PPCPA的热分解温度显著升高,其玻璃化温度(Tg)和拉伸强度先增高后降低,主要是由于聚合物中聚醚含量增加所致.
参考文献
[1] | Donald J.Darensbourg .Making Plastics from Carbon Dioxide:Salen Metal Complexes as Catalysts for the Production of Polycarbonates from Epoxides and CO2[J].Chemical Reviews,2007(6):2388-2410. |
[2] | Geoffrey W.Coates;David R.Moore .Discrete Metal-Based Catalysts for the Copolymerization of CO_2 and Epoxides:Discovery,Reactivity,Optimization,and Mechanism[J].Angewandte Chemie,2004(48):6618-6639. |
[3] | Wang SJ.;Du LC.;Zhao XS.;Meng YZ.;Tjong SC. .Synthesis and characterization of alternating copolymer from carbon dioxide and propylene oxide[J].Journal of Applied Polymer Science,2002(11):2327-2334. |
[4] | Sugimoto H;Inoue S .Copolymerization of carbon dioxide and epoxide[J].Journal of Polymer Science, Part A. Polymer Chemistry,2004(22):5561-5573. |
[5] | Luinstra GA .Poly(propylene carbonate), old copolymers of propylene oxide and carbon dioxide with new interests: Catalysis and material properties[J].Polymer reviews,2008(1):192-219. |
[6] | Q Zhu;Yz Meng;Sc Tjong;Xs Zhao;Yl Chen .Thermally stable and high molecular weight poly(propylene carbonate)s from carbon dioxide and propylene oxide[J].Polymer international,2002(10):1079-1085. |
[7] | Donald J. Darensbourg;Matthew W. Holtcamp .Catalysts for the reactions of epoxides and carbon dioxide[J].Coordination chemistry reviews,1996(0):155-174. |
[8] | Li XH.;Meng YZ.;Zhu Q.;Tjong SC. .Thermal decomposition characteristics of poly(propylene carbonate) using TG/IR and Py-GC/MS techniques[J].Polymer Degradation and Stability,2003(1):157-165. |
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