INTERMEDIATE STRUCTURES IN EQUILIBRIUM FLOCCULATION

被引：65

作者：

WONG, K

LIXON, P

LAFUMA, F

LINDNER, P

CHARRIOL, OA

CABANE, B

机构：

[1] CENS,SERV CHIM MOLEC,EQUIPE MIXTE CEA RP,F-91191 GIF SUR YVETTE,FRANCE

[2] CENS,SERV CHIM MOLEC,CNRS,URA 331,F-91191 GIF SUR YVETTE,FRANCE

[3] RHONE POULENS RECH,F-93308 AUBERVILLIERS,FRANCE

[4] UNIV PARIS 11,UTILISAT RAYONNEMENT ELECTROMAGNET LAB,F-91405 ORSAY,FRANCE

[5] ECOLE SUPER PHYS & CHIM IND,F-75231 PARIS 05,FRANCE

[6] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1992年 / 153卷 / 01期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1016/0021-9797(92)90297-Y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Small-angle neutron scattering is used to determine the organization of silica particles which have been dispersed in water and covered with adsorbed poly(ethylene oxide) macromolecules. Aggregates are formed when the range of bridging attractions exceeds that of electrostatic repulsions. When the repulsions are still strong the aggregates are one-dimensional necklace-like structures. Depressing the repulsions allows the necklaces to bind to each other; the aggregates become bushy structures and then three-dimensional gels with liquid-like short-range order. © 1992.

引用

页码：55 / 72

页数：18

共 25 条

[1]

[Anonymous], 1982, SMALL ANGLE X RAY SC

[2]

[Anonymous], 1979, CHEM SILICA

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