Miscibility of conductive blends of poly(o-anisidine) with poly(2-alkyl-2-oxazoline)s

✍ Scribed by C. H. Ong; S.H. Goh; H.S.O. Chan

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 195 KB
• Volume: 65
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19970711)65:2<391::aid-app20>3.0.co;2-1

✦ Synopsis

HCl-doped poly( o-anisidine) (PANIS-HCl) and undoped poly( o-anisidine) (PANIS-base) were blended with poly(2-methyl-2-oxazoline) (PMOx) or poly(2-ethyl-2-oxazoline) (PEOx) by solution casting from dimethyl sulfoxide. Blends containing 50 wt % or less of PANIS-HCl or PANIS-base were flexible and homogeneous. The glass transition temperature of the blend continuously shifted away from that of PMOx or PEOx with increasing PANIS-HCl or PANIS-base content, indicating miscibility. The shift in the T g value was larger for the PMOx blend than for the corresponding PEOx blend, suggesting a stronger interpolymer interaction in the former blend. Fourier transform infrared spectroscopic studies indicated the presence of specific interactions in the blends as evidenced by the changes of C|O and NH bands. Blends containing 50 wt % of PANIS-HCl showed conductivity of about 10 04 S/cm.