Self-assembling directed synthesis of a novel terephthalamide-bridged ladderlike polysiloxane

Autor:	De-yan Shen, Ping Xie, Hui Li, Xiaoshu Zhou, Rongben Zhang, Jian-Min Zhang, Zhongxing Zhang, Guangqing Guo, Chunqing Liu, Shu-yan Yu
Rok vydání:	2002
Předmět:	chemistry.chemical_classification Condensation polymer Polymers and Plastics Vapor pressure osmometry Hydrosilylation Organic Chemistry Polymer chemistry.chemical_compound Monomer chemistry Polymerization Diamine Polymer chemistry Materials Chemistry Proton NMR
Zdroj:	Journal of Polymer Science Part A: Polymer Chemistry. 40:3161-3170
ISSN:	1099-0518 0887-624X
DOI:	10.1002/pola.10403
Popis:	A novel, soluble terephthalamide-bridged ladderlike polysiloxane (L) was synthesized successfully for the first time by stepwise coupling polymerization. The process involved the hydrogen-bonding self-assembly of amido groups, which resulted in the formation of a more highly ordered polymeric structure. A novel monomer, bis(3-methyldimethoxysilylpropyl) terephthalamide (M), was prepared by a hydrosilylation reaction in the presence of dicyclopentadienyl platinum dichloride as a catalyst. The structures of the monomer (M) and the polymer (L) were characterized by Fourier transform infrared, 1H NMR, 13C NMR, 29Si NMR, mass spectrometry, X-ray diffraction, differential scanning calorimetry, and vapor pressure osmometry. All the characterization data indicated that the synthesized polymer (L) possessed an ordered ladderlike structure. © 2002 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 40: 3161–3170, 2002
Databáze:	OpenAIRE
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