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Complexation of poly(ethylene glycol) with some salts of alkali‐earth metals
Author(s) -
Bekturov Esen,
Tolendina Akmaral,
Shaikhutdinov Yerenqaip,
Dzhumadilov Talkybek
Publication year - 1993
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1993.220040907
Subject(s) - alkali metal , ethylene glycol , macromolecule , alkaline earth metal , inorganic chemistry , amorphous solid , viscometer , materials science , chloride , peg ratio , ethylene , earth (classical element) , salt (chemistry) , polymer chemistry , organic chemistry , chemistry , viscosity , catalysis , physics , finance , biochemistry , economics , composite material , mathematical physics
The interaction of poly(ethylene glycol) with some salts of alkali‐earth metals (Mg(ClO 4 ) 2 , BaCl 2 , SrCl 2 , SrBr 2 and CaCl 2 ) in methanolic solutions was investigated by electroconductivity, viscometry, X‐ray diffractometry and NMR. It was established that the conformation of macromolecules is strongly changed in the presence of Mg(ClO 4 ) 2 . Chlorides and bromides of alkali‐earth metals have a weak influence on macromolecule size. The formation of amorphous complexes in the PEG–Mg(ClO 4 ) 2 system and crystalline complexes in PEG–chloride systems of alkali‐earth metals was shown.