Viscometric studies and thermal characterization of interfacial polymers having aliphatic lactone ring synthesized from succinic acid and various phenols
| Main Authors: | Lakshmikanta, Bimal Verma |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 2013
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5794100 |
Daftar Isi:
- Department of Applied Chemistry, Sri Shankaracharya College of Engineering & Technology, Junwani, Bhilai-490 020, Chhattisgarh, India E-mail : kanta_27lakshmi@yahoo.co.in Department of Applied Chemistry, Birla Institute of Technology, Mesra, Ranchi-835 215, Jharkhand, India Manuscript received 31 January 2012, revised 03 July 2012, accepted 16 January 2013 This article describes the viscometric studies and thermal behavior of various polymers having pendent aliphatic lactone ring synthesized by stirred interfacial polycondensation of various dyes and terephthaloyl chloride in 1,2-dichloroethane. All the polymers were dark colored granular powder and soluble in dimethyl sulfoxide. All polymers exhibited moderate intrinsic viscosity [η] ranging from 0.475-0.51 dl/g at 32 ± 0.2 °C in DMSO. The approximate number-average molecular weight (Mn) ranges between 4.2 x 103 to 4.7 x 107 g mol-1 by taking upper and lower values of α and K in Mark-Houwink-Sakurada equation. The thermal transition temperature, Tg, in the range 74.9-143.3 °C of polymers was determined from DSC thermograms. The TGA thermograms of polymers had shown good thermal stability of these polymers till 300 °C.