Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 122, Issue 5, Pages 2843-2848Publisher
WILEY
DOI: 10.1002/app.34342
Keywords
benzoxazine; phenol; cardanol; furfural; performance enhancement
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Funding
- National Postdoctoral Science Foundation of China [20100471162]
- Science and Technology Bureau of Huangshi, China [2010A1019-4]
- National Natural Science Foundation of China [51073125]
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Two types of novel benzoxazine-based phenolic resins from phenol-furfural (PFB) and cardanol-furfural (CFB) resins had been synthesized and the highly thermally stable polybenzoxazines were obtained by the thermal cure of the corresponding benzoxazine-based phenolic resins. The chemical structure of benzoxazine-based phenolic resins derived from renewable resources was confirmed by Fourier transform infrared (FTIR), H-1 NMR, and gel permeation chromatography (GPC). FTIR spectrum and differential scanning calorimetry (DSC) showed that the monomers were thermally initiated and polymerized via ring-opening polymerization. Thermogravimetric analysis indicated that the incorporation of furan groups could enhance the char yield and thermal stability. However, the long alkyl side chain from cardanol could increase the toughness, while decreasing the char yield and thermal stability. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 122:2843-2848, 2011
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