19-Jun-2013
03:38:45 IST
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NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section B (IJC-B) >
IJC-B Vol.47B [2008] >
IJC-B Vol.47B(06) [June 2008] >
| Title: | Copolyesters based on s-triazine moiety: Synthesis and characterization |
| Authors: | Patel, Bhupesh V
Patel, Hemant S
Patel, Keshav C |
| Keywords: | Copolyesters
s-triazine
IR
NMR
Thermogravimetric analysis |
| Issue Date: | Jun-2008 |
| Publisher: | CSIR |
| Abstract: | Ten copolyesters have been synthesized by high temperature polycondensation of 2-(β-naphthylamino)-4,6-bis(naphthoxy-3-carbonyl chloride)-s-triazine [NANCCT] with each of the mixture of diols:[Bisphenol-A(BPA)+ Bisphenol-C(BPC)], [BPA+Hydroquinone(Hq)], [BPA+1,5-Dihydroy naphthalene(1,5-DHN)], [BPA+1,4–Dihydroy anthraquinone(1,4-DHA)], [BPA+Catechol(C)], [BPA+Resorcinol(R)], [BPA+Ph], [Ph+1,4-DHA], [Ph+C] and [Ph+R]. All the copolyesters have been characterized by solubility, density, viscosity measurements, IR and NMR spectra, and thermogravimetric analysis. All the copolyesters are soluble at high temperature in acetone, dimethylformamide (DMF), dimethylsulphoxide (DMSO), dimethylacetamide (DMA), etc. and have reduced viscosity in the range 0.400-0.641 dL/g in DMF at 30ºC. Copolyester derived from diol mixture[BPA+1,4-DHA] show greater thermal stability than the other copolyesters. |
| Page(s): | 885-891 |
| ISSN: | 0376-4699 |
| Source: | IJC-B Vol.47B(06) [June 2008]
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