Abstract
Despite the industrial significance of poly(bisphenol A carbonate), there is a scarcity of open literature on the equilibrium of the melt-phase process. In fact, the equilibrium constant (Keq) for this reaction has never been measured directly. This article describes a process on the basis of NMR for the measurement of Keq for the reaction between bisphenol A and diphenyl carbonate in the presence and absence of a catalyst. The apparent enthalpy and entropy were calculated using a van't Hoff plot. Decomposition of bisphenol A is a common side reaction in the melt-phase reaction performed at high temperatures in the presence of catalyst. The effect of these side reactions on the Keq in the presence of catalyst is determined.
Original language | English (US) |
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Pages (from-to) | 171-178 |
Number of pages | 8 |
Journal | Journal of Polymer Science, Part A: Polymer Chemistry |
Volume | 40 |
Issue number | 1 |
DOIs | |
State | Published - Jan 1 2002 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Polymers and Plastics
- Organic Chemistry
- Materials Chemistry