学术探索
学术期刊
新闻热点
数据分析
智能评审

Micellization of diblock and triblock copolymers in aqueous solution. New results for oxyethylene/oxybutylene copolymers E(38)B(12) and E(21)B(11)E(21). Comparison of oxyethylene/oxybutylene, oxyethylene/oxypropylene, and oxyethylene/allyl systems

被引：74
作者：
Yang, YW
Deng, NJ
Yu, GE
Zhou, ZK
Attwood, D
Booth, C
机构：
[1] UNIV MANCHESTER,DEPT CHEM,MANCHESTER POLYMER CTR,MANCHESTER M13 9PL,LANCS,ENGLAND
[2] UNIV MANCHESTER,DEPT PHARM,MANCHESTER M13 9PL,LANCS,ENGLAND
[3] SUNY STONY BROOK,DEPT CHEM,STONY BROOK,NY 11794
来源：
LANGMUIR | 1995年 / 11卷 / 12期
关键词：
D O I：
10.1021/la00012a021
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Two oxyethylene/oxybutylene block copolymers of similar chain length and composition, E(38)B(12) and E(21)B(11)E(21), were prepared by sequential anionic polymerization and characterized by gel permeation chromatography and NMR spectroscopy. Their association in dilute aqueous solution was investigated by static and dynamic light scattering. Both copolymers associated by closed processes to form micelles, those of the diblock copolymer being the larger. The increment per B unit in the standard Gibbs energy of micellization of diblock E(m)B(n) copolymers was found to be 2.0 kJ mol(-1). The critical micelle concentrations of oxyethylene/oxybutylene (E(m)B(n) and E(m)B(n)E(m)), oxyethylene/alkyl (E(m)C(n)), and oxyethylene/oxypropylene (E(m)P(n)E(m)) copolymers are compared, and the effect of chain architecture (diblock and triblock) on the association of diblock and triblock copolymers is discussed.
引用
收藏
页码：4703 / 4711
页数：9
相关论文
共 54 条
  • [1] Wanka G., Hoffmann H., Ulbricht W., Macrmolecules, 27, (1994)
  • [2] Schillen K., Brown W., Johnsen R.M., Macromolecules, 27, (1994)
  • [3] Mortensen K., Brown W., Jorgensen E., Macromolecules, 27, (1994)
  • [4] Zhou Z.-K., Chu B., Macromolecules, 27, (1994)
  • [5] Alexandridis P., Holzwarth J.F., Hatton T.A., Macromolecules, 27, (1994)
  • [6] Mortenson K., Pedersen J.S., Macromolecules, 26, (1993)
  • [7] Yang L., Bedells A.D., Attwood D., Booth C., J. Chem. Soc, Faraday Trans., 88, (1992)
  • [8] Yu G.-E., Deng Y.-L., Dalton S., Wang Q.-G., Attwood D., Price C., Booth C., J. Chem. Soc, Faraday Trans., 88, (1992)
  • [9] Malmeten M., Lindman B., Macromolecules, 25, (1992)
  • [10] Luo Y.-Z., Nicholas C.V., Attwood D., Collett J.H., Price C., Booth C., Colloid Polym. Sci., 270, (1992)
123456