Features of the dissociation of polyelectrolyte complexes in concentrated salt solutions

被引：3
作者：
Parashchuk, V. V. [1 ]
Izumrudov, V. A. [1 ,2 ]
机构：
[1] Moscow MV Lomonosov State Univ, Fac Chem, Moscow 119991, Russia
[2] Russian Acad Sci, Nesmeyanov Inst Organoelement Cpds, Moscow 119991, Russia
来源：
POLYMER SCIENCE SERIES A | 2015年 / 57卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
STABILITY;
D O I：
10.1134/S0965545X15010083
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A systematic study of the phase behavior of products resulting from the interaction of oligomeric and high-molecular-mass styrenesulfonate anions with oligomeric and polymeric N-ethyl-4-vinylpyridinium cations in aqueous salt solutions was conducted for the first time. Unexpected and considerable differences in the stability of the resulting asymmetric polyelectrolyte complexes composed of a long cationic or anionic matrix and anionic (respectively cationic) oligomers of the same degree of polymerization were revealed. A mechanism of this phenomenon based on the difference in the conformational behavior of interacting polyions in concentrated salt solutions was suggested.
引用
收藏
页码：24 / 32
页数：9
相关论文
共 13 条
  • [1] Davydova OV, 2001, MACROMOL CHEM PHYS, V202, P1368, DOI 10.1002/1521-3935(20010501)202:8<1368::AID-MACP1368>3.0.CO
  • [2] 2-I
  • [3] Soluble polyelectrolyte complexes of biopolymers
    Izumrudov, V. A.
    [J]. POLYMER SCIENCE SERIES A, 2012, 54 (07) : 513 - 520
  • [4] Izumrudov V.A., 2008, Russ. Chem. Rev, V77, P381, DOI [10.1070/RC2008v077n04ABEH003767, DOI 10.1070/RC2008V077N04ABEH003767]
  • [5] Izumrudov VA, 1999, BIOPOLYMERS, V52, P94, DOI 10.1002/1097-0282(1999)52:2<94::AID-BIP3>3.0.CO
  • [6] 2-O
  • [7] Izumrudov VA, 1998, VYSOKOMOL SOEDIN, V40, P459
  • [8] PAPISOV IM, 1989, ADV POLYM SCI, V90, P139
  • [9] PERGUSHOV DV, 1995, VYSOKOMOL SOEDIN, V37, P1739
  • [10] Samoilov O. Ya., 1957, STRUCTURE AQUEOUS SO
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