Use of methyl 2-(bromomethyl)acrylate as a chain-transfer agent to yield functionalized macromonomers via conventional and living radical polymerizations

被引：32

作者：

Bon, SAF ^{[1
]}

Morsley, SR ^{[1
]}

Waterson, C ^{[1
]}

Haddleton, DM ^{[1
]}

机构：

[1] Univ Warwick, Dept Chem, Coventry CV4 7AL, W Midlands, England

来源：

MACROMOLECULES | 2000年 / 33卷 / 16期

关键词：

D O I：

10.1021/ma991922t

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 chain-transfer constants of methyl (2-bromomethyl)acrylate (MBrMA) in bulk polymerizations of methyl methacrylate (MMA) and styrene were determined at 70 degrees C using both the Mayo method (1/DPn as well as 2/DPw) and the chain-length-distribution procedure (Lambda). The C(MBrMA)values using 2/DPw and Lambda were consistent, i.e., 1.28 and 1.20 for MMA and 11.44 and 10.92 for styrene, respectively. MBrMA was used as a chain-transfer agent in the emulsion polymerization of MMA to yield an a-bromo-functionalized macromonomeric latex ([M-n] = 9.6 x 10(3) g mol(-1); PDI = 1.80), which was subsequently copolymerized with styrene to yield the corresponding poly(styrene-graft-MMA) copolymer. MBrMA was used as an addition-fragmentation agent in the living radical polymerization of MMA mediated by copper(I) bromide/N-(n-octyl)-2-pyridylmethanimine In situ addition of a 5-fold equivalent of MBrMA and Cu(0) to this polymerization quenched the reaction and transformed the omega-bromide into the methacrylate-based macromonomer quantitatively.

引用

页码：5819 / 5824

页数：6

共 42 条

[1] Silyl enol ethers: End-capping agents for living radical polymerization of methyl methacrylate with ruthenium complex [J].

Ando, T ;

Kamigaito, M ;

Sawamoto, M .

MACROMOLECULES, 1998, 31 (19) :6708-6711

[2] Critically evaluated rate coefficients for free-radical polymerization .2. Propagation rate coefficients for methyl methacrylate [J].

Beuermann, S ;

Buback, M ;

Davis, TP ;

Gilbert, RG ;

Hutchinson, RA ;

Olaj, OF ;

Russell, GT ;

Schweer, J ;

vanHerk, AM .

MACROMOLECULAR CHEMISTRY AND PHYSICS, 1997, 198 (05) :1545-1560

[3]

Bon SAF, 2000, J POLYM SCI POL CHEM, V38, P2678, DOI 10.1002/1099-0518(20000801)38:15<2678::AID-POLA70>3.0.CO

[4]

2-P

[5] CRITICALLY EVALUATED RATE COEFFICIENTS FOR FREE-RADICAL POLYMERIZATION .1. PROPAGATION RATE COEFFICIENT FOR STYRENE [J].

BUBACK, M ;

GILBERT, RG ;

HUTCHINSON, RA ;

KLUMPERMAN, B ;

KUCHTA, FD ;

MANDERS, BG ;

ODRISCOLL, KF ;

RUSSELL, GT ;

SCHWEER, J .

MACROMOLECULAR CHEMISTRY AND PHYSICS, 1995, 196 (10) :3267-3280

[6] Living free-radical polymerization by reversible addition-fragmentation chain transfer: The RAFT process [J].

Chiefari, J ;

Chong, YK ;

Ercole, F ;

Krstina, J ;

Jeffery, J ;

Le, TPT ;

Mayadunne, RTA ;

Meijs, GF ;

Moad, CL ;

Moad, G ;

Rizzardo, E ;

Thang, SH .

MACROMOLECULES, 1998, 31 (16) :5559-5562

[7] A more versatile route to block copolymers and other polymers of complex architecture by living radical polymerization: The RAFT process [J].

Chong, YK ;

Le, TPT ;

Moad, G ;

Rizzardo, E ;

Thang, SH .

MACROMOLECULES, 1999, 32 (06) :2071-2074

[8] Transfer constants from complete molecular weight distributions [J].

Christie, DI ;

Gilbert, RG .

MACROMOLECULAR CHEMISTRY AND PHYSICS, 1996, 197 (01) :403-412

[9] Transfer constants from complete molecular weight distributions (vol 197, pg 403, 1996) [J].

Christie, DI ;

Gilbert, RG .

MACROMOLECULAR CHEMISTRY AND PHYSICS, 1997, 198 (02) :663-663

[10] MOLECULAR-WEIGHT DISTRIBUTIONS IN FREE-RADICAL POLYMERIZATIONS .1. MODEL DEVELOPMENT AND IMPLICATIONS FOR DATA INTERPRETATION [J].

CLAY, PA ;

GILBERT, RG .

MACROMOLECULES, 1995, 28 (02) :552-569

← 1 2 3 4 5 →