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Tangible plasticization/filler effects of sodium salts of dimer acids on the mechanical properties of styrene ionomers
Author(s) -
Ko KwangHwan,
Park Hye Ryeon,
Kim JoonSeop,
Kim YoungWun
Publication year - 2013
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/app.38836
Subject(s) - ionomer , plasticizer , polymer chemistry , materials science , ionic bonding , styrene , methacrylate , polystyrene , dynamic mechanical analysis , polymer , chemical engineering , chemistry , composite material , copolymer , organic chemistry , ion , engineering
The effects of the presence of dimer acid (DA) molecules in Na‐sulfonated polystyrene (PSSNa) and poly(styrene‐co Na‐methacrylate) (PSMANa) ionomers on the ionomer properties were investigated using a dynamic mechanical analysis technique. The DA decreased the matrix and cluster T g s of PSSNa ionomer without changing the ionic modulus, suggesting that the DA resided both in the matrix and cluster regions of PSSNa ionomer and acted mainly as a plasticizer. On the other hand, the DA decreased the cluster T g of PSMANa ionomer, without changing the matrix T g , and also increased the ionic modulus, implying that the DA behaved like plasticizer only for the cluster regions. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013