Sandhya, T. E. ; Ramesh, C. ; Sivaram, S. (2003) Copolyesters based on poly(butylene terephthalate)s containing cyclohexyl groups: synthesis, structure and crystallization Macromolecular Symposia, 199 (1). pp. 467-482. ISSN 1022-1360
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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/masy.20...
Related URL: http://dx.doi.org/10.1002/masy.200350939
Abstract
Poly(butylene terephthalate-co-cyclohexylene dimethylene terephthalate) copolymers PBTCT, were synthesized by melt condensation with compositions ranging from 94/08 to 23/77. 13C NMR spectroscopy was used to study the microstructure of the copolyesters and was found to be completely random. The melting temperature, crystallization temperature on cooling, enthalpy of melting and crystallization followed an eutectic behaviour. Thermal and X-ray diffraction studies indicated that the copolyesters in all composition could crystallize. The XRD studies further indicated that PBT rich copolyesters in the range 75 to 100% BT, crystallized in the PBT lattice while the copolyesters rich in PCT having 38 to 100% CT, crystallized in the PCT lattice.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons. |
| Keywords: | Cocrystallization; Copolyester; Copolymerization; Sequence Analysis; WAXS |
| ID Code: | 48505 |
| Deposited On: | 14 Jul 2011 10:19 |
| Last Modified: | 14 Jul 2011 10:19 |
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