Synthesis of model A5B1 heteroarm star copolymers using living radical polymerization mediated by 2,2,6,6-tetramethylpiperidine-1-oxyl

被引：10

作者：

Yoshida, E ^{[1
]}

Terazono, T ^{[1
]}

机构：

[1] Kyoto Inst Technol, Dept Polymer Sci & Engn, Sakyo Ku, Kyoto 6068585, Japan

来源：

POLYMER JOURNAL | 1999年 / 31卷 / 07期

关键词：

A(5)B(1) heteroarm star copolymers; 2,2,6,6-tetramethylpiperidine-1-oxyl; living radical polymerization; cyclotriphosphazene; counter radical; polystyrene;

D O I：

10.1295/polymj.31.621

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Model A5B1 heteroarm star copolymers comprising poly(ethylene oxide) and polystyrene were synthesized by living radical polymerization using 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-supported cyclotriphosphazene. In the presence of 4-pentachlorocyclotriphosphazoxyl-TEMPO, the polymerization was fast although the polymers obtained had broad polydispersity. 4-Pentamethoxycyclotriphosphazoxyl-TEMPO and 4-penta[oligo(oxyethylene)]cyclotriphosphazoxyl-TEMPO gave polymers with narrow polydispersity. The polymers were obtained in quantitative efficiency, with the molecular weight in proportion to conversion and reciprocal of the initial concentration of the counter radicals.

引用

页码：621 / 624

页数：4

共 17 条

[1] STRAIN-INDUCED RING-OPENING POLYMERIZATION OF FERROCENYLORGANOCYCLOTRIPHOSPHAZENES - A NEW SYNTHETIC ROUTE TO POLY(ORGANOPHOSPHAZENES) [J].

ALLCOCK, HR ;

DODGE, JA ;

MANNERS, I ;

RIDING, GH .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (25) :9596-9603

[2] Synthesis of model 16-miktoarm (Vergina) star copolymers of the A(8)B(8) [J].

Avgeropoulos, A ;

Poulos, Y ;

Hadjichristidis, N ;

Roovers, J .

MACROMOLECULES, 1996, 29 (18) :6076-6078

[3] PREPARATION AND CHARACTERIZATION OF NOVEL STAR-SHAPED COPOLYMERS HAVING 3 DIFFERENT BRANCHES [J].

FUJIMOTO, T ;

ZHANG, HM ;

KAZAMA, T ;

ISONO, Y ;

HASEGAWA, H ;

HASHIMOTO, T .

POLYMER, 1992, 33 (10) :2208-2213

[4] NARROW POLYDISPERSITY POLYSTYRENE BY A FREE-RADICAL POLYMERIZATION PROCESS - RATE ENHANCEMENT [J].

GEORGES, MK ;

VEREGIN, RPN ;

KAZMAIER, PM ;

HAMER, GK ;

SABAN, M .

MACROMOLECULES, 1994, 27 (24) :7228-7229

[5] SYNTHESIS AND CHARACTERIZATION OF MODEL 4-MIKTOARM STAR COPOLYMERS AND QUATERPOLYMERS [J].

IATROU, H ;

HADJICHRISTIDIS, N .

MACROMOLECULES, 1993, 26 (10) :2479-2484

[6] SYNTHESIS OF A MODEL 3-MIKTOARM STAR TERPOLYMER [J].

IATROU, H ;

HADJICHRISTIDIS, N .

MACROMOLECULES, 1992, 25 (18) :4649-4651

[7] STAR-SHAPED POLYMERS BY LIVING CATIONIC POLYMERIZATION .3. SYNTHESIS OF HETEROARM AMPHIPHILIC STAR-SHAPED POLYMERS OF VINYL ETHERS WITH HYDROXYL OR CARBOXYL PENDANT GROUPS [J].

KANAOKA, S ;

OMURA, T ;

SAWAMOTO, M ;

HIGASHIMURA, T .

MACROMOLECULES, 1992, 25 (24) :6407-6413

[8] POLYMERS HAVING STABLE RADICALS .1. SYNTHESIS OF NITROXYL POLYMERS FROM 4-METHACRYLOYL DERIVATIVES OF 2,2,6,6-TETRAMETHYLPIPERIDINE [J].

KUROSAKI, T ;

WANLEE, K ;

OKAWARA, M .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1972, 10 (11) :3295-3310

[9] Synthesis of an amphiphilic triarm star copolymer based on polystyrene, poly(ethylene oxide) and poly(epsilon-caprolactone) [J].

Lambert, O ;

Dumas, P ;

Hurtrez, G ;

Riess, G .

MACROMOLECULAR RAPID COMMUNICATIONS, 1997, 18 (04) :343-351

[10] RATE ENHANCEMENT OF LIVING FREE-RADICAL POLYMERIZATIONS BY AN ORGANIC-ACID SALT [J].

ODELL, PG ;

VEREGIN, RPN ;

MICHALAK, LM ;

BROUSMICHE, D ;

GEORGES, MK .

MACROMOLECULES, 1995, 28 (24) :8453-8455

← 1 2 →