PREPARATION OF PYRIDYL-TERMINATED OLIGODIMETHYLSILOXANE AND SILOXANE-GRAFTED COPOLYMERS CONTAINING PYRIDYL GROUPS AT THE SIDE-CHAIN ENDS

被引:8
作者
AOYAGI, T
TAKAMURA, Y
NAKAMURA, T
NAGASE, Y
机构
[1] Sagami Chemical Research Center, Sagamihara, Kanagawa, 229, Nishi-Ohnuma
关键词
OLIGODIMETHYLSILOXANE; PYRIDYL GROUPS; MACROMONOMER; GRAFT COPOLYMER; GAS PERMEABILITY;
D O I
10.1016/0032-3861(92)90132-G
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The preparation of hetero difunctional oligodimethylsiloxanes (ODMSs) was carried out. The ODMSs contained 2-(4-pyridyl)ethyl (Py) or 2-(2,6-di-t-butyl-4-pyridtl)ethyl (DBPy) at one end and a reactive group, such as 3-methacryloxypropyl (MP) or hydrosilyl (H), at the other end. These oligosiloxanes were prepared by anionic ring-opening polymerization of hexamethylcyclotrisiloxane (D3) initiated with silanolate anions containing pyridyl groups. To obtain the initiators, novel silanol compounds containing Py or DBPy groups were prepared from 4-methylpyridine and 2,6-di-t-butyl-4-methylpyridine, respectively. The average degree of polymerization could be controlled by changing the ratio of D3 and the initiator. Py-ODMS-MP and DBPy-ODMS-MP were copolymerized with methyl methacrylate or butyl methacrylate hydrosilylation of DBPy-ODMS-H with vinyldimethylsilated polysulphone (PSF) was carried out to afford PSF/DBPy-ODMS graft copolymer. The gas permeability coefficients of nitrogen, oxygen and carbon dioxide for the copolymer membranes were evaluated.
引用
收藏
页码:1530 / 1536
页数:7
相关论文
共 14 条
[1]   PREPARATION + PROPERTIES OF POLY(TETRAMETHYL-P-SILPHENYLENE-SILOXANE) [J].
MERKER, RL ;
SCOTT, MJ .
JOURNAL OF POLYMER SCIENCE PART A-GENERAL PAPERS, 1964, 2 (1PA) :15-&
[2]  
NAGASE Y, 1988, POLYM COMMUN, V29, P10
[3]  
NAGASE Y, 1990, MAKROMOL CHEM-RAPID, V11, P185
[4]   CHEMICAL MODIFICATION OF POLY(SUBSTITUTED-ACETYLENE) .1. SYNTHESIS AND GAS-PERMEABILITY OF POLY(1-TRIMETHYLSILYL-1-PROPYNE) POLY(DIMETHYLSILOXANE) GRAFT COPOLYMER [J].
NAGASE, Y ;
UEDA, T ;
MATSUI, K ;
UCHIKURA, M .
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1991, 29 (02) :171-179
[5]   CHEMICAL MODIFICATION OF POLYSULFONE .1. SYNTHESIS OF POLYSULFONE POLYDIMETHYLSILOXANE GRAFT COPOLYMER [J].
NAGASE, Y ;
NARUSE, A ;
MATSUI, K .
POLYMER, 1989, 30 (10) :1931-1937
[6]   CHEMICAL MODIFICATION OF POLY(SUBSTITUTED-ACETYLENE) .3. SYNTHESIS AND GAS-PERMEABILITY OF POLY(1-PHENYL-1-PROPYNE) POLY(DIMETHYLSILOXANE) GRAFT COPOLYMER [J].
NAGASE, Y ;
MORI, S ;
MATSUI, K ;
UCHIKURA, M .
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1988, 26 (11) :3131-3137
[7]   CHEMICAL MODIFICATION OF POLY(SUBSTITUTED-ACETYLENE) .4. PERVAPORATION OF ORGANIC LIQUID WATER MIXTURE THROUGH POLY(1-PHENYL-1-PROPYNE) POLYDIMETHYLSILOXANE GRAFT COPOLYMER MEMBRANE [J].
NAGASE, Y ;
MORI, S ;
MATSUI, K .
JOURNAL OF APPLIED POLYMER SCIENCE, 1989, 37 (05) :1259-1267
[8]   IMPROVEMENT OF GAS-PERMEABILITY OF POLY(2,6-DIMETHYL-1,4-PHENYLENE OXIDE) BY SILYLATION OR BY THE INTRODUCTION OF POLYDIMETHYLSIOXANE CHAINS [J].
NAGASE, Y ;
UEDA, T ;
MATSUI, K ;
UCHIKURA, M .
KOBUNSHI RONBUNSHU, 1986, 43 (11) :733-740
[9]   CHEMICAL MODIFICATION OF POLY(SUBSTITUTED-ACETYLENE) .2. PERVAPORATION OF ETHANOL WATER MIXTURE THROUGH POLY(1-TRIMETHYLSILYL-1-PROPYNE) POLY(DIMETHYLSILOXANE) GRAFT COPOLYMER MEMBRANE [J].
NAGASE, Y ;
ISHIHARA, K ;
MATSUI, K .
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1990, 28 (03) :377-386
[10]  
NAGASE Y, 1990, MAKROMOL CHEM, V191, P2413