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Studies on miscibility of poly(phenylene oxide)‐based ionomer/polystyrene‐based ionomer blends
Author(s) -
Pan Yan,
Huang Yuhui,
Liao Bing,
Chen Mingcai,
Cong Guangmin,
Leung Louis M.
Publication year - 1997
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19970711)65:2<341::aid-app14>3.0.co;2-2
Subject(s) - miscibility , ionomer , materials science , polystyrene , polymer chemistry , phenylene , differential scanning calorimetry , polymer blend , polymer , oxide , chemical engineering , copolymer , composite material , thermodynamics , physics , metallurgy , engineering
The phase behavior of a series of blends obtained from mixing carboxylated poly(phenylene oxide) with sulfonated polystyrene and their respective neutralized ionomers was studied by differential scanning calorimetry. A substantially broader range of miscibility was observed when both blend components were functionalized, compared with blends in which only one of the components contained an acid group or was an ionomer. The properties of metallic cations which were used to neutralize the acid groups in the blends were found to have an effect on the miscibility. The miscibility of the two acid polymers or their ionomers depended on the difference of their functionalization level instead of on the absolute percentage of functional groups on each polymer. It was found that the two acid polymers or their ionomers remained miscible as long as they had a similar percentage of functional groups. © 1997 John Wiley & Sons, Inc. J Appl Polm Sci 65:341–346, 1997