Thermodynamic properties of novolac-type phenolic resin blended with poly(ethylene oxide)

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/28396

Title:	Thermodynamic properties of novolac-type phenolic resin blended with poly(ethylene oxide)
Authors:	Chu,PP;Wu,HD;Lee,CT
Contributors:	中央大學
Keywords:	ASSOCIATION MODEL;PHASE-BEHAVIOR;POLYMER BLENDS;DEPENDENCE;ENTHALPY;ETHER
Date:	1998
Issue Date:	2010-06-29 19:47:56 (UTC+8)
Publisher:	化學研究所
Abstract:	The thermodynamic properties of novolac type phenolic resin blended with poly(ethylene oxide) (PEO) were investigated by the Painter-Coleman association model (PCAM). Equilibrium constants and enthalpy corresponding to the interaction between phenolic and poly( ethylene oxide) were calculated from the Fourier transform infrared spectroscopy of low molecular weight analogues in dilute solutions. The association parameters of the model compounds are transferred to the corresponding polymers, to predict the Gibbs free energy, phase behavior, and the degree of hydrogen bonding in the polymer blend. The heat capacity (C-p) and the excess heat capacity (Delta C-p) are used to verify the validity of PCAM model on predicting the thermodynamics properties of phenolic/PEO blend. It is found that the hydrogen bonding interaction dominates at moderate temperatures, which is outweighed by the dispersion force at higher temperature or high PEO compositions. (C) 1998 John Wiley & Sons, Inc.
Relation:	JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
Appears in Collections:	[Graduate Institute of Chemistry] journal & Dissertation

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