THE TEMPERATURE-CONTROLLED FLOCCULATION OF CROSS-LINKED LATEX-PARTICLES

被引：60

作者：

SNOWDEN, MJ

VINCENT, B

机构：

来源：

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS | 1992年 / 16期

关键词：

D O I：

10.1039/c39920001103

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Aqueous dispersions of poly(N-isopropylacrylamide) latex are shown to be stable at 25-degrees-C in the presence of simple electrolytes and non-adsorbing polymers; at 40-degrees-C, however, flocculation of the particles takes place as a result of charge screening and depletion forces operative in the system; this process is shown to be reversible, with the particles redispersing on cooling to 25-degrees-C.

引用

页码：1103 / 1105

页数：3

共 10 条

[1]

ASAKURA A, 1958, J CHEM PHYS, V22, P1255

[2] INTERACTION BETWEEN PARTICLES SUSPENDED IN SOLUTIONS OF MACROMOLECULES [J].

ASAKURA, S ;

OOSAWA, F .

JOURNAL OF POLYMER SCIENCE, 1958, 33 (126) :183-192

[3] STABILITY OF NON-AQUEOUS MICROGEL DISPERSIONS IN THE PRESENCE OF FREE POLYMER [J].

CLARKE, J ;

VINCENT, B .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1981, 77 :1831-1843

[4]

HUNTER RJ, 1987, OXFORD SCI PUBLICATI, V1

[5] EQUILIBRIUM ASPECTS OF WEAK FLOCCULATION [J].

LONG, JA ;

OSMOND, DWJ ;

VINCENTB .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1973, 42 (03) :545-553

[6]

MILLING A, 1991, COLLOID SURFACE, V51, P185

[7] PREPARATION OF AQUEOUS LATTICES WITH N-ISOPROPYLACRYLAMIDE [J].

PELTON, RH ;

CHIBANTE, P .

COLLOIDS AND SURFACES, 1986, 20 (03) :247-256

[8]

RAWSON S, 1989, COLLOID SURFACE, V34, P89

[9] FLOCCULATION OF SILICA PARTICLES BY ADSORBING AND NONADSORBING POLYMERS [J].

SNOWDEN, MJ ;

CLEGG, SM ;

WILLIAMS, PA ;

ROBB, ID .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1991, 87 (14) :2201-2207

[10]

VINCENT B, 1986, COLLOID SURFACE, V18, P261, DOI 10.1016/0166-6622(86)80317-1

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