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Thermal degradation characteristics of phenol–formaldehyde resins derived from beetle infested pine barks

✍ Scribed by Zhao, Yong; Yan, Ning; Feng, Martin W.

Book ID
121190707
Publisher
Elsevier Science
Year
2013
Tongue
English
Weight
847 KB
Volume
555
Category
Article
ISSN
0040-6031

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## Abstract The terpolymer resins have been synthesized by the condensation of 2,2′‐dihydroxybiphenyl with urea and formaldehyde in the presence of 2__M__ HCl as a catalyst and with varying molar proportions of reactants. Elemental analysis, IR, NMR and UV–Visible spectral study, and TGA–DTA analys