Synthesis and characterization of hydroxypropyl terminated polydimethylsiloxane-polyurethane copolymers
Hao-Chen Bai
Department of Polymer Processing and Engineering, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
Search for more papers by this authorLin Tao
Department of Polymer Processing and Engineering, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
Search for more papers by this authorYuan-Jin Pang
Department of Polymer Processing and Engineering, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
Search for more papers by this authorYuan-Jian Zhou
Chenguang Research Institute of chemical Industry, China National Blue Star Co., Chengdu, Sichuan 610041, People's Republic of China
Search for more papers by this authorCorresponding Author
Jun Chen
Department of Polymer Processing and Engineering, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China===Search for more papers by this authorHao-Chen Bai
Department of Polymer Processing and Engineering, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
Search for more papers by this authorLin Tao
Department of Polymer Processing and Engineering, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
Search for more papers by this authorYuan-Jin Pang
Department of Polymer Processing and Engineering, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
Search for more papers by this authorYuan-Jian Zhou
Chenguang Research Institute of chemical Industry, China National Blue Star Co., Chengdu, Sichuan 610041, People's Republic of China
Search for more papers by this authorCorresponding Author
Jun Chen
Department of Polymer Processing and Engineering, College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China===Search for more papers by this authorAbstract
Polyurethane (PU) block copolymers were synthesized using prepared hydroxypropyl terminated polydimethylsiloxane (HTPDMS MW 990) and polyether diols (N-210) as soft segment with 4,4′-diphenylmethane diisocyanate (MDI) and 1,4-butanediol. This low molecular weight polydimethylsiloxanes (PDMS) containing hydroxypropyl end-groups displayed better compatibility with PU than common PDMS. In this article, we illustrate its synthesis routes and confirmed the proposed molecular structures using NMR and infrared radiation (IR). We varied the contents of HTPDMS and N-210 in soft segments (HTPDMS—N-210: 0 : 100, 20 : 80, 40 : 60, 60 : 40, 80 : 20, and 100 : 0) to synthesize a series of PDMS-PU copolymer. IR spectroscopy showed the assignment characteristic groups of each peak in copolymers and confirmed that the desired HTPDMS-PU copolymers have been prepared. The different thermal, dynamic mechanical and surface properties of the copolymers were compared by thermogravimetry, DMA, contact angle and solvent resistance. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
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