Isotactic, atactic, and syndiotactic poly(methyl methacrylates) (i, a, and s PMMAs) were mixed with poly(vinylidene chloride-co-acrylonitrile) (Saran F) separately in tetrahydrofuran to make three polymer blend systems. Differential scanning calorimetry (DSC) was used mainly to study the miscibility
Binary and ternary polymer blends containing poly(vinylidene chloride-co-acrylonitrile)
β Scribed by Wen-Ping Hsu
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 85 KB
- Volume
- 91
- Category
- Article
- ISSN
- 0021-8995
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β¦ Synopsis
Abstract
Poly(vinylidene chlorideβcoβacrylonitrile) (Saran F), poly(hydroxy ether of bisphenol A) (phenoxy), poly(styreneβcoβacrylonitrile) (PSAN), and poly(vinyl phenol) (PVPh) all have the same characteristic: miscibility with atactic poly(methyl methacrylate) (aPMMA). However, the miscibility of Saran F with the other polymer (phenoxy, PSAN, or PVPh) is not guaranteed and was thus investigated. Saran F was found to be miscible only with PSAN but not miscible with phenoxy and PVPh. Because Saran F and PVPh are not miscible, although they are both miscible with aPMMA, aPMMA can thus be used as a potential cosolvent to homogenize PVPh/Saran F. The second part of this report focused on the miscibility of a ternary blend consisting of Saran F, PVPh, and aPMMA to investigate the cosolvent effect of aPMMA. Factors affecting the miscibility were studied. The established phase diagram indicated that the ternary blends with high PVPh/Saran F weight ratio were found to be mostly immiscible. Β© 2004 Wiley Periodicals, Inc. J Appl Polym Sci 91: 3068β3073, 2004
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