Association of ethylene-vinyl acetate copolymer in dilute solutions - III. Critical association concentration

被引：0

作者：

Qian, JW ^{[1
]}

Li, J ^{[1
]}

Yang, YS ^{[1
]}

Qi, GR ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Polymer Sci & Engn, Hangzhou 310027, Peoples R China

来源：

CHINESE JOURNAL OF POLYMER SCIENCE | 1998年 / 16卷 / 04期

关键词：

association; dilute solution; viscometry;

D O I：

暂无

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Association behavior of ethylene vinyl acetate (EVA) copolymer in four solvents 1, 2-dichloroethane (DCE), cyclohexane (CYH), xylene (XYL) and chloroform (CF) has been investigated by dilute solution viscometry. The critical association concentration (C-A) was determined at which the incipient decrease in slope of the eta(sp)/C similar to C curve in solutions at the dilute regime. Our results showed that whether the C-A could exist depends on solvent property. The values of C-A in DCE increase with increasing, of temperature and vinyl acetate (VA) content in EVA and decreasing of molecular weight of EVA.

引用

页码：327 / 331

页数：5

共 19 条

[11] VISCOMETRIC DETERMINATION OF THE 2 CRITICAL CONCENTRATIONS OF POLYMERS IN SOLUTION [J].

PIERRI, E ;

DONDOS, A .

EUROPEAN POLYMER JOURNAL, 1987, 23 (05) :347-351

[12] A THERMODYNAMIC INVESTIGATION OF MICELLE FORMATION BY A POLYSTYRENE-B-POLYISOPRENE BLOCK COPOLYMER IN NORMAL-HEXADECANE [J].

PRICE, C ;

CHAN, EKM ;

MOBBS, RH ;

STUBBERSFIELD, RB .

EUROPEAN POLYMER JOURNAL, 1985, 21 (04) :355-360

[13]

Qian JW, 1996, J APPL POLYM SCI, V60, P1575

[14] Inter- and intrachain associations of an ethylene-vinyl acetate random copolymer in dilute 1,2-dichloroethane solutions [J].

Qian, JW ;

Wang, XH ;

Qi, GR ;

Wu, C .

MACROMOLECULES, 1997, 30 (11) :3283-3287

[15] Influence of incipient chain dimension of EVA flow improver on the rheological behaviour of crude oil [J].

Qian, JW ;

Qi, GR ;

Han, DL ;

Yang, SL .

FUEL, 1996, 75 (02) :161-163

[16] Association of ethylene-vinyl acetate copolymer in dilute solutions .1. Solvent, concentration and annealing temperature effect [J].

Qian, JW ;

Qi, GR ;

Cheng, RS .

EUROPEAN POLYMER JOURNAL, 1997, 33 (08) :1263-1265

[17]

Qian JW, 1998, EUR POLYM J, V34, P445

[18] DISCONTINUITY IN THE VARIATION OF INTRINSIC-VISCOSITY OF POLYMERS AND THEIR MIXTURES WITH TEMPERATURE IN DILUTE-SOLUTIONS [J].

RASHID, HU ;

ABUBAKAR, SD .

JOURNAL OF POLYMER SCIENCE PART C-POLYMER LETTERS, 1989, 27 (01) :5-8

[19] A light-scattering study of the aggregation behavior of fluorocarbon-modified polyacrylamides in water [J].

Zhang, YB ;

Wu, C ;

Fang, Q ;

Zhang, YX .

MACROMOLECULES, 1996, 29 (07) :2494-2497

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