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The effect of poly(vinyl alcohol) hydrolysis on the properties of its blends with nylon 6
Author(s) -
Cui Li,
Fu Qiang,
Chang Changjung,
Yeh Jentaut
Publication year - 2009
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.21382
Subject(s) - vinyl alcohol , hydrolysis , materials science , crystallization , ultimate tensile strength , polymer chemistry , molecule , nylon 6 , alcohol , nylon 66 , chemical engineering , composite material , organic chemistry , polymer , chemistry , polyamide , engineering
An investigation of the properties of the blends of nylon 6 (PA6) and poly(vinyl alcohol) (PVA) with varying degrees of hydrolysis was conducted. A near disappearance of the characteristics of the α‐form PVA crystals, crystallization exotherms, and hydrogen‐bonded hydroxyl groups and the tensile properties originally associated with the PVA molecules of PA6 x PVA 98 y,PA6 x PVA 95 y , and PA6 x PVA 86 yspecimens was observed as the PVA contents of the specimens became equal to or less than their corresponding ‘‘critical’’ values at 16.7 wt%, 33.3 wt%, and 50 wt%, respectively. These results support the idea that PVA molecules are miscible with PA6 molecules to some extent at the molecular level as the PVA contents of the blends become equal to or less than their corresponding critical PVA contents. In this article, we have proposed the possible reasons accounting for these properties of the PA6 x PVA y series specimens with a varying degree of hydrolysis. POLYM. ENG. SCI., 2009. © 2009 Society of Plastics Engineers