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Improvement of poly(vinyl alcohol) properties by the addition of magnesium nitrate
Author(s) -
Kubo Junichi,
Rahman Nelly,
Takahashi Nobuaki,
Kawai Takahiko,
Matsuba Go,
Nishida Koji,
Kanaya Toshiji,
Yamamoto Masahide
Publication year - 2009
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.29561
Subject(s) - vinyl alcohol , magnesium nitrate , materials science , magnesium , dielectric , crystallite , softening , composite material , polymer chemistry , dielectric loss , natural rubber , chemical engineering , polymer , optoelectronics , engineering , metallurgy
Aiming at the improvement of mechanical and dielectric properties of poly(vinyl alcohol) (PVA), we prepared composites of PVA and magnesium nitrate hexahydrate. It was found that the composites were very soft and rubber‐like, and the glass transition temperature decreased with increasing the salt concentration. Wide‐angle X‐ray diffraction and small‐angle X‐ray scattering revealed that the crystallites of PVA were destroyed by the additive and it was the cause of the softening. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009