Prediction of Thermodynamic Properties of Novolak-Type Phenolic Resin and Aliphatic Polyester Blends:  Painter−Coleman Association Model Study of Compositional Homogeneity

Abstract

The interassociation constants of Painter−Coleman association model, obtained from the results of Fourier transform infrared spectroscopy of low molecular weight analogues in dilute solution, were used to predict the thermodynamic properties of phenolic and polyester polymer blends. The miscibility window, phase diagram, and degree of hydrogen bonding were discussed with the transferability of the association constant between the model compound and the polymer blends. All the predicted results coincided with the actual hydrogen bonding, regular photograph, and proton spin−lattice relaxation in the rotating flame (T 1 ρ H). This model provides a reasonable explanation of analogues of phenolic resin blends. The predicted thermodynamic properties are in harmony with the experimental results due to the high hydroxyl group density and low molecular weight of the phenolic resin which improves the compositional homogeneity of the phenolic/polyester blend.

Interfacial interactions and their influence to phase behavior in poly(vinyl pyrrolidone)/silica hybrid materials prepared by sol?gel process

“…All the hybrid materials that constituted of PVP and MTEOS exhibited only single T g located at the region from 150 to 180 jC, which were lower than that of neat PVP. These data confirm the miscibility between MTEOS and PVP [14,18]. Glass transition behavior for PVP/TEOS hybrid system showed more variation than that of PVP/MTEOS hybrid materials.…”

Preparation and characterization of novolac type phenolic resin blended with poly(dimethylsiloxane adipamide)

“…The synthesis method and the analytical techniques of novolac‐type phenolic resin were described in previous reports 8–10. The synthesis of poly(dimethylsiloxane‐adipamide) (PDMSA) was as follows.…”

“…Improvement in the toughness of phenolic resin is important for further application 4–7. The miscibility of phenolic blends depends on both the strength of self‐association of the phenolic resin and the interassociation between the phenolic resin and modifier 8–16. A simple and useful method to analyze the miscibility of a polymer blend is by determining the T g as a function of composition 15, 16.…”

Phenol-Formaldehyde Resin for Optical-Chemical Temperature Sensing

“…These laminate materials were selected for their low thermal conductivities. The characteristics of PF resin are reviewed further by Kim et al [18]; the properties of other phenolic resin compounds have also been the subject investigation [19,20,21]. …”