Synthesis and characterization of polyester containing biphenol A modified by phosphaphenathrene

POLY 226

Lijun Qin, qianbit8@bit.edu.cn1, Junge Zhi, zhijunge@bit.edu.cn2, Bin Tong, tongbin@bit.edu.cn1, and Yuping Dong, chdongyp@bit.edu.cn1. (1) College of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China, (2) College of Science, Beijing Institute of Technology, Beijing, 100081, China
The polyesters were derived from 2DOPO-PhOH, sebacoyl chloride and terephthaloyl chloride. When the molar ratio of sebacoyl chloride and terephthaloyl chloride is 1:1, the polyester contained rigid structure (benzene-ester-benzene-carbon (2DOPO)-benzene-ester-benzene) and exhibited mesophic and crystallizing texture in a temperature range about 100 oC. Rigid structure (benzene-ester-benzene-carbon (2DOPO)-benzene-ester-benzene) in polyester promoted the regular arrangement of the polymer molecules and the forming of crystallization state and liquid crystal phase. The polyesters without the structure (benzene-ester-benzene-carbon (2DOPO)-benzene-ester-benzene) did not exhibit crystalline properties. All polyesters owned good thermal stability owing to its high residual char yield of P1, P2 surpass 18% and 19% respectively.
 

General Papers: Synthesis and Characterization
6:00 PM-8:00 PM, Sunday, 10 September 2006 Moscone Center -- Hall D, Poster

Division of Polymer Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006