Some properties of poly(carbonates) and poly(thiocarbonates) from diphenols with methyl groups in the 3-position in the phenyl rings

✍ Scribed by Rey-Stolle, M. F.; Fernández-Martín, F.; Tagle, L. H.; Hernández-Fuentes, I.

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 265 KB
• Volume: 46
• Category: Article
• ISSN: 0959-8103
• DOI: 10.1002/(sici)1097-0126(199806)46:2<93::aid-pi931>3.0.co;2-c

✦ Synopsis

Glass transition temperatures and the corresponding activation energies of poly(carbonates) and poly(thiocarbonates) with di †erent side-chain substituents obtained from diphenols with methyl groups in the 3-position in the phenyl rings have been determined by di †erential scanning calorimetry at several scanning speeds. Partial speciÐc volume and speciÐc refractive index increments have also been obtained by densimetry and refractometry measurements in benzene at 25¡C. The e †ect of the di †erent substituents on these properties has been analysed. 1998 SCI.