Maria Cristina Timar, Kevin Maher, Mark Irle, Maria Daniela Mihai
Preparation of Wood with Thermoplastic Properties, Part 2. Simplified Technologies
Summary
Aspen wood (Populus tremula) as sawdust was chemically modified through a two-step procedure: esterification
with maleic anhydride and subsequent oligoesterification with glycidyl methacrylate and maleic
anhydride. Simplified techniques consisting of impregnation by immersion followed by thermal treatment
using conventional or microwave heating were employed. Chemical analyses and infra-red spectroscopy
showed some differences in the chemical composition and structure of the resulting oligoesterified
wood depending on the synthesis technique. However, the thermoplastic properties, clearly
revealed by thermomechanical analysis, were quite similar and comparable to those exhibited by the oligoesterified
wood resulting via classical synthesis. Moreover, similar degrees of chemical modification
were obtained for a significantly shorter duration of the process when microwave heating was employed
instead of conventional heating.
Holzforschung, Walter de Gruyter
Print ISSN: 0018-3830
Volume: 54, 01/2000
Pages: 77 - 82
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