Synthesis of novolac-type phenolic resins using glucose as the substitute for formaldehyde

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1191-1197
Journal / PublicationJournal of Applied Polymer Science
Volume118
Issue number2
Publication statusPublished - 15 Oct 2010
Externally publishedYes

Abstract

Novel Novolac type phenolic resins were prepared using glucose as the substitute for toxic formaldehyde (a carcinogenic chemical). The resins were synthesized with varying molar ratios of phenol to glucose, catalyzed by strong acid (such as sulfuric acid) at 120-150°C. Analysis of the resins using gel permeation chromatography (GPC) and proton nuclear magnetic resonance (1H-NMR) showed that they were broadly distributed oligomers derived from the Fridel-Crafts condensation of phenol and glucose. Using hexamethylenetetramine (HMTA) as the curing agent, the phenol-glucose resins could be thermally cured and exhibited exothermic peaks at 130-180°C, typical of thermosetting phenolic resins. The cured resins showed satisfactory thermal stability, e.g., they started to decompose at >280°C with residual carbon yields of above 58% at 600°C. Based on the thermal properties, phenol-glucose resin with a molar ratio of 1 : 0.5 is promising as it could be cured at a lower temperature (147°C) and exhibited a satisfactorily good thermal stability: it started to decompose at >300°C with a residual carbon yield of >64% at 600°C. © 2010 Wiley Periodicals, Inc.

Research Area(s)

  • Curing of polymers, Renewable resources, Resins, Synthesis, Thermal properties

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Synthesis of novolac-type phenolic resins using glucose as the substitute for formaldehyde. / Wang, Mingcun; Yuan, Zhongshun; Cheng, Shuna et al.
In: Journal of Applied Polymer Science, Vol. 118, No. 2, 15.10.2010, p. 1191-1197.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review