Kinetic study of poly(ethylene oxide-b-2-methyl-2-oxazoline) diblocs synthesis from poly(ethylene oxide) macroinitiators

被引：15

作者：

Brissault, B ^{[1
]}

Guis, C ^{[1
]}

Cheradame, H ^{[1
]}

机构：

[1] Univ Evry Val dEssone, URM 7581 CNRS, Polymer Mat & Interfaces Lab, F-91025 Evry, France

来源：

EUROPEAN POLYMER JOURNAL | 2002年 / 38卷 / 02期

关键词：

D O I：

10.1016/S0014-3057(01)00157-4

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 synthesis of poly(ethylene oxide-b-2-methyl-2-oxazoline) (PEO-POXZ) block copolymers was carried out by the polymerization of 2-methyl-2-oxazoline (MeOXZ) from monomethoxy poly(ethylene oxide) macroinitiator. The initiating functions were 4-chloromethylbenzoate or tosylate groups. The functionalization of alpha -methoxy-omega -hydroxy PEO was optimized by adjustment of the reaction temperature. The duplication side reaction was investigated in the case of tosylate functionalization. The determination of the propagation rate constants of the MeOXZ polymerization showed that the presence of the PEO chains decreased the propagation rate constant in the case of active species under the form of oxazolinium. ions, while it increased the propagation rate constant in the case of covalent active species, most probably by partial ionization. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：219 / 228

页数：10

共 20 条

[1]

ADAMSON DG, 2000, POLYM PREPRINTS, V4, P1231

[2] Synthesis of poly(ethylene glycol)-block-poly(ethylenimine) possessing an acetal group at the PEG end [J].

Akiyama, Y ;

Harada, A ;

Nagasaki, Y ;

Kataoka, K .

MACROMOLECULES, 2000, 33 (16) :5841-5845

[3]

DARLING GD, 1986, J POLYM PREPR ACS PO, V27, P7

[4] SYNTHESIS AND CHARACTERIZATION OF POLY(ETHYLENE GLYCOL) DERIVATIVES [J].

HARRIS, JM ;

STRUCK, EC ;

CASE, MG ;

PALEY, MS ;

VANALSTINE, JM ;

BROOKS, DE .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1984, 22 (02) :341-352

[5] LABORATORY SYNTHESIS OF POLYETHYLENE-GLYCOL DERIVATIVES [J].

HARRIS, JM .

JOURNAL OF MACROMOLECULAR SCIENCE-REVIEWS IN MACROMOLECULAR CHEMISTRY AND PHYSICS, 1985, C25 (03) :325-373

[6]

HIRANO T, 1979, MAKROMOL CHEM, V180, P1125

[7] Polyion complex micelles with reactive aldehyde groups on their surface from plasmid DNA and end-functionalized charged blocks copolymers [J].

Kataoka, K ;

Harada, A ;

Wakebayashi, D ;

Nagasaki, Y .

MACROMOLECULES, 1999, 32 (20) :6892-6894

[8] Remarkable increase in nuclease resistance of plasmid DNA through supramolecular assembly with poly(ethylene glycol) poly(L-lysine) block copolymer [J].

Katayose, S ;

Kataoka, K .

JOURNAL OF PHARMACEUTICAL SCIENCES, 1998, 87 (02) :160-163

[9] Synthesis of thermochromic iron(II) tris(bipyridine)-centered star-shaped polyoxazolines and their bipyridine-centered macroligand counterparts [J].

McAlvin, JE ;

Scott, SB ;

Fraser, CL .

MACROMOLECULES, 2000, 33 (19) :6953-6964

[10] CHAIN-CLEAVAGE AND HYDROLYSIS OF ACTIVATED POLYETHYLENE-GLYCOL DERIVATIVES - EVIDENCE FOR COMPETITIVE PROCESSES [J].

MCMANUS, SP ;

KARAMAN, RM ;

SEDAGHATHERATI, MR ;

SHANNON, TG ;

HOVATTER, TW ;

HARRIS, JM .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1990, 28 (12) :3337-3346

← 1 2 →