Copolymerization of carbon dioxide and propylene oxide using zinc adipate as catalyst
Copolymerization of carbon dioxide and propylene oxide using zinc adipate as catalyst
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DOI：
10.1002/app.22229
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发表时间：
2006-01
影响因子：
3
通讯作者：
Jin Wang;D. Shu;M. Xiao;Y. Meng
中科院分区：
文献类型：
--
作者：
Jin Wang;D. Shu;M. Xiao;Y. Meng
以氧化锌和己二酸为原料，采用不同的方法合成了己二酸锌。通过傅里叶变换红外光谱（FTIR）、广角X射线衍射（WXRD）和扫描电子显微镜（SEM）等技术对产物的化学结构和晶体形貌进行了表征。结果表明，由于搅拌强度的不同，磁力搅拌合成的己二酸锌结晶度高于机械搅拌合成的己二酸锌，对CO2与环氧丙烷（PO）的共聚反应具有更高的催化活性。考察了CO_2与PO共聚合的最佳条件。在优化的共聚条件下，聚合物的催化活性可达110.4g/g催化剂。核磁共振谱表明，合成的聚碳酸亚丙酯（PPC）具有高度交替的共聚物结构。DSC和TGA测试表明，具有Mn = 41，900 Da的PPC的玻璃化转变温度和分解温度分别为27.7和248°C。© 2005 Wiley Periodicals，Inc.应用聚合物科学杂志99：200-206，2006
Zinc adipate was synthesized from zinc oxide with adipic acid by different methods. Their chemical structure and crystalline morphology were determined by Fourier transform infrared spectroscopy (FTIR), wide-angle X-ray diffraction (WXRD), and scanning electron microscopy (SEM) techniques. The results showed that the zinc adipate synthesized under magnetic stirring possessed higher degree of crystallinity than that synthesized under mechanical stirring due to the different stirring strength, and therefore exhibited greater catalytic activity for the copolymerization between CO2 and propylene oxide (PO). The optimum condition for the copolymerization of CO2 and PO was also investigated. Very high catalytic activity of 110.4 g polymer/g catalyst was afforded under optimizing copolymerization condition. NMR spectra revealed that the synthesized poly(propylene carbonate) (PPC) had a highly alternating copolymer structure. DSC and TGA examinations showed that the glass transition temperature and decomposition temperature of the PPC with Mn = 41,900 Da were 27.7 and 248°C, respectively. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 99: 200–206, 2006