Decomposition of poly(propylene carbonate) with UV sensitive iodonium salts
Decomposition of poly(propylene carbonate) with UV sensitive iodonium salts
复制标题
DOI：
10.1016/j.polymdegradstab.2010.12.003
复制
发表时间：
2011-04
影响因子：
5.9
通讯作者：
T. Spencer;P. Kohl
中科院分区：
文献类型：
--
作者：
T. Spencer;P. Kohl
研究了含光产酸剂的聚碳酸亚丙酯的热分解特性。研究了铸膜溶剂、光酸浓度和类型、紫外线照射剂量、基底表面和环境气体等因素对膜厚的影响。采用动态热重分析法研究了其热分解特性。采用Kissinger法和Coats-Redfern法提取动力学参数。采用傅里叶变换红外光谱法分析了铸膜溶剂的影响。最高的热稳定性被发现发生在高分子量，高纯度的聚（碳酸亚丙酯）样品。环己酮和三氯乙烯溶剂被发现增加热稳定性。基于二苯基碘鎓盐的光生酸剂降低了起始分解温度和活化能。
The decomposition characteristics of poly(propylene carbonate) containing a photoacid generator have been studied. The influence of casting solvent, photoacid concentration and type, UV exposure dose, substrate surface, and ambient gas were included in this study. Dynamic thermogravimetric analysis was used to analyze the decomposition characteristics. Kinetic parameters were extracted using the Kissinger method and the Coats–Redfern method. Fourier Transform Infrared Spectroscopy was used to analyze effects of casting solvent. The highest thermal stability was found to occur in high molecular weight, high-purity poly(propylene carbonate) samples. Cyclohexanone and trichloroethylene solvents were found to increase the thermal stability. Photoacid generators based on diphenyliodonium salts lowered the onset decomposition temperature and activation energy.