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Microstructure and mechanical properties studies of poly(vinyl alcohol)–lead salts complexes
Author(s) -
Bakr N. A.,
AbdelHamid M. I.,
ElHanafy O.
Publication year - 1995
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.1995.070550306
Subject(s) - vinyl alcohol , microstructure , casting , polymer chemistry , materials science , salt (chemistry) , alcohol , chemical engineering , chemistry , organic chemistry , composite material , polymer , engineering
Poly(vinyl alcohol) (PVA) was found to form complexes with PbCl 2 , Pb(NO 3 ) 2 , and Pb(CH 3 COO) 2 . Different complex compositions were prepared by casting technique. Microdomains were observed in the case of the PbCl 2 ‐PVA system. Complexes of PbCl 2 ‐PVA system are somicrystalline over the entire composition range. PbCl 2 ‐PVA complexes are stable to temperatures greater than 350°C in comparison to 225°C of pure PVA. The general features of the microdomains depends upon the temperature and the salt concentration. The hardness properties of the binary mixture were found to change in a nonlinear mode exhibiting a maximum value with the increase of the PbCl 2 content and in a linear mode for the other salts. © 1995 John Wiley & Sons, Inc.