Miscibility and interpolymer complexation of poly(1-vinyl-imidazole) with hydroxyl- and carboxyl-containing polymers

✍ Scribed by Xiaofeng Luo; S. H. Goh; S. Y. Lee

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 77 KB
• Volume: 200
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/(sici)1521-3935(19990201)200:2<399::aid-macp399>3.0.co;2-b

✦ Synopsis

The miscibility of poly(1-vinylimidazole) (PVI) with some hydroxyl-and carboxyl-containing polymers was studied. Each of the binary blends or complexes of PVI with poly(p-vinylphenol) (PVPh), poly(2-hydroxypropyl methacrylate) (PHPMA) and poly(acrylic acid) (PAA) showed a single glass transition temperature (T g ), indicating miscibility. However, PVI is immiscible with poly(styrene-co-allyl alcohol) (SAA) and poly(hydroxyether of bisphenol-A) (Phenoxy) as shown by the appearance of two T g 's in each of the blends. Based on the frequency shifts of the hydroxyl band of the hydroxyl-containing polymers, the intensities of hydrogen bonding interactions between PVI and hydroxyl-containing polymers are in the order PVPh A PHPMA A SAA and Phenoxy. PVI interacts with PAA via ionic interaction.