文献类型：期刊文献

英文题名：Solubility of terephthalic acid in the reaction system oligomeric bishydroxybutyl terephthalates-1,4-butanediol

作者：Huang, Hainan[1]; Zeng, Zuoxiang[1]; Xue, Weilan[1]; Zhu, Wanyu[2]

机构：[1] Institute of Chemical Engineering, East China University of Science and Technology, 200237 Shanghai, China; [2] Shanghai Tianyang Hot-melt Adhesive Company Limited, 201802 Shanghai, China

年份：2009

卷号：49

期号：4

起止页码：819

外文期刊名：Polymer Engineering and Science

收录：EI(收录号：20091512020602)

语种：英文

外文关键词：Chemical reactions - Oligomers

摘要：The physical solubilities of terephthalic acid (TPA) in the reaction system oligomeric bishydroxybutyl terephthalates-1,4-butanediol (BD) are measured using an analytic method from 449 to 507 K. The reaction system is obtained by transesterification of dimethyl ter-ephthalate and excess BD. These results are fitted with the solubility model based on the Margules equation, and the average deviation of the model is 1.20%; the fysion enthalpies ΔHfus of TPA and infinite-dilution activity coefficients γ2 in the system are obtained by regressing of the experimental data. In addition, synthetic method is chosen to determine the total solubility which is complicated by chemical reaction, the results Indicate that the chemical reaction start at 452-472 K. ? 2009 Society of Plastics Engineers.