Local chain dynamics of poly(oxyethylene) studied by the fluorescence depolarization method

被引：15

作者：

Horinaka, J ^{[1
]}

Amano, S ^{[1
]}

Funada, H ^{[1
]}

Ito, S ^{[1
]}

Yamamoto, M ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Engn, Dept Polymer Chem, Sakyo Ku, Kyoto 60601, Japan

来源：

MACROMOLECULES | 1998年 / 31卷 / 04期

关键词：

D O I：

10.1021/ma970912u

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 local chain dynamics of poly(oxyethylene)(POE) labeled with anthryl group in the middle of the main chain was examined by the fluorescence depolarization method. The relaxation time of the local motion was evaluated and its molecular weight dependence was shown. POE had a mean relaxation time in the order of subnanoseconds. The value of the relaxation time increased with the molecular weight in the range of MW < 4000 and reached an asymptotic value at MW of about 4000. The relaxation time and the activation energy for local motion of POE were compared with those of some styrene and methacrylate polymers and the characteristics of POE chain were discussed. POE had a much higher local chain mobility than other polymers. This high local chain mobility of POE results from the molecular structure of POE chain.

引用

页码：1197 / 1201

页数：5

共 43 条

[11] SIMULATION OF THE BROWNIAN-MOTION OF MACROMOLECULAR CHAINS .1. LOCAL MOTIONS AND CHAIN CONFORMATIONS [J].

GENY, F ;

MONNERIE, L .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1979, 17 (01) :131-146

[12] SIMULATION OF THE BROWNIAN-MOTION OF MACROMOLECULAR CHAINS .2. CHAIN DYNAMICS [J].

GENY, F ;

MONNERIE, L .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1979, 17 (01) :147-163

[13] C-13 NUCLEAR-MAGNETIC-RESONANCE MEASUREMENTS OF LOCAL SEGMENTAL DYNAMICS OF POLYISOPRENE IN DILUTE-SOLUTION - NONLINEAR VISCOSITY DEPENDENCE [J].

GLOWINKOWSKI, S ;

GISSER, DJ ;

EDIGER, MD .

MACROMOLECULES, 1990, 23 (14) :3520-3530

[14] THE STABLE STATES PICTURE OF CHEMICAL-REACTIONS .2. RATE CONSTANTS FOR CONDENSED AND GAS-PHASE REACTION MODELS [J].

GROTE, RF ;

HYNES, JT .

JOURNAL OF CHEMICAL PHYSICS, 1980, 73 (06) :2715-2732

[15]

Harris J.M., 1992, Polyethylene Glycol: Chemistry and Biological Applications

[16] THEORY OF KINETICS OF CONFORMATIONAL TRANSITIONS IN POLYMERS [J].

HELFAND, E .

JOURNAL OF CHEMICAL PHYSICS, 1971, 54 (11) :4651-+

[17] LOCAL CHAIN DYNAMICS OF SYNDIOTACTIC POLY(METHYL METHACRYLATE) STUDIED BY FLUORESCENCE DEPOLARIZATION METHOD [J].

HORINAKA, J ;

ONO, K ;

YAMAMOTO, M .

POLYMER JOURNAL, 1995, 27 (04) :429-435

[18] RAMAN SPECTRA OF POLY(ETHYLENE GLYCOLS) IN SOLUTION [J].

KOENIG, JL ;

ANGOOD, AC .

JOURNAL OF POLYMER SCIENCE PART A-2-POLYMER PHYSICS, 1970, 8 (10) :1787-&

[19] DYNAMICS OF MACROMOLECULAR CHAINS .6. CARBON 13 AND PROTON NUCLEAR MAGNETIC-RELAXATION OF POLYSTYRENE IN SOLUTION [J].

LAUPRETRE, F ;

NOEL, C ;

MONNERIE, L .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1977, 15 (12) :2127-2142

[20] CONFORMATION AND DYNAMICS OF POLY(OLEFIN SULFONES) IN SOLUTION .1. HIGH-FREQUENCY DIELECTRIC-RELAXATION AND C-13 NMR RELAXATION [J].

MASHIMO, S ;

WINSOR, P ;

COLE, RH ;

MATSUO, K ;

STOCKMAYER, WH .

MACROMOLECULES, 1986, 19 (03) :682-686

← 1 2 3 4 5 →