Borane-containing polyolefins: synthesis and applications

被引:50
作者
Chung, TC [1 ]
Janvikul, W [1 ]
机构
[1] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA
关键词
Ziegler-Natta catalyst; metallocenes; graft copolymer; block copolymer;
D O I
10.1016/S0022-328X(99)00087-X
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
This article summarizes the experimental results in the synthesis and applications of borane containing polyolefins. It is becoming clear that the introduction of borane groups into polyolefins, such as polyethylene (PE) and polypropylene (PP), is a valuable route for achieving their functionalization, which has been a long scientific challenge and industrial needed technology. The trialkyborane moieties, unlike other organic functional groups, are stable to early transition metal (Lewis acid) complexes and compatible with olefin monomers. Therefore, borane-containing monomers can be effectively incorporated into polyolefins via Ziegler-Natta and metallocene copolymerization reactions. In turn, the borane group that is incorporated into the polymer not only can be quantitatively converted to a hydroxy group, but it also can be transformed into a stable polymeric radical that then initiates a living free radical polymerization of the functional monomers. The functional group and functional group concentration are basically governed by the monomers that are introduced. The resulting graft and block copolymers, having well-controlled molecular structures, would be very difficult to prepare by existing methods. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:176 / 187
页数:12
相关论文
共 40 条
[1]  
AINSWORTH S, 1990, CHEM ENG NEWS, V15, P9
[2]  
Boor J., 1979, Ziegler-Natta Catalysts and Polymerization
[3]  
BROWN HC, 1975, ORGANIC SYNTHESIS VI
[4]  
BROWN HC, 1971, CHEM COMMUN, P699
[5]   SYNTHESIS OF FUNCTIONALIZED POLYPROPYLENE [J].
CHUNG, TC ;
RHUBRIGHT, D .
MACROMOLECULES, 1991, 24 (04) :970-972
[6]   SYNTHESIS OF ETHYLENE-PROPYLENE RUBBER GRAFT-COPOLYMERS BY BORANE APPROACH [J].
CHUNG, TC ;
JANVIKUL, W ;
BERNARD, R ;
JIANG, GJ .
MACROMOLECULES, 1994, 27 (01) :26-31
[7]   KINETIC ASPECTS OF THE COPOLYMERIZATION BETWEEN ALPHA-OLEFINS AND BORANE MONOMER IN ZIEGLER-NATTA CATALYST [J].
CHUNG, TC ;
RHUBRIGHT, D .
MACROMOLECULES, 1993, 26 (12) :3019-3025
[8]   SYNTHESIS OF POLYPROPYLENE-GRAFT-POLY(METHYL METHACRYLATE) COPOLYMERS BY THE BORANE APPROACH [J].
CHUNG, TC ;
RHUBRIGHT, D ;
JIANG, GJ .
MACROMOLECULES, 1993, 26 (14) :3467-3471
[9]   SYNTHESIS OF POLYALCOHOLS VIA ZIEGLER-NATTA POLYMERIZATION [J].
CHUNG, TC .
MACROMOLECULES, 1988, 21 (04) :865-869
[10]   CARBOCATIONIC POLYMERIZATION OF ISOBUTYLENE BY USING SUPPORTED LEWIS ACID CATALYST ON POLYPROPYLENE [J].
CHUNG, TC ;
KUMAR, A .
POLYMER BULLETIN, 1992, 28 (02) :123-128