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Hybrid materials made from polymeric betaines and low molar mass salts
Author(s) -
Bonte Nelly,
Laschewsky André,
Vermylen Valérie
Publication year - 1997
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19971170123
Subject(s) - molar mass , miscibility , salt (chemistry) , plasticizer , polymer , ionic bonding , homogeneous , polymer chemistry , molar ratio , materials science , chemical engineering , molar concentration , chemistry , ion , organic chemistry , inorganic chemistry , thermodynamics , physics , engineering , catalysis
The blending of polyzwitterions with low molar mass salts, in particular with salts containing bulky, organic ions is studied. In many cases, homogeneous blends are obtained using stoechiometric amounts of salt, and in selected cases, the amounts of salt which can be admixed is even substantially higher. In contrast to inorganic salts, bulky organic salts are efficient plasticizers. Although the fundamental interaction in such blends is of electrostatic nature, the miscibility depends in a subtle way on specific interactions between particular ionic groups as well as on the molecular structures of polymer and salt.