کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
34978 45064 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Chemo-enzymatic functionalisation of lignocellulose materials using oxiranes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Chemo-enzymatic functionalisation of lignocellulose materials using oxiranes
چکیده انگلیسی

A new non-selective chemo-enzymatic process using oxiranes for functionalisation of lignocellulose materials has been developed. Using a lipase and hydrogen peroxide, soybean oil and linoleic acid were epoxidised resulting in a 52.7% and 92.4% relative conversion to oxirane, respectively. A commercial oxirane, 1,2-epoxyoctane and oxiranes generated from epoxidation of oils (using lipase and hydrogen peroxide) were successfully coupled onto long chain alkylamines while the oxiranes were in turn readily coupled onto phenolic lignin model compounds. Treatment of beech veneers with dodecylamine using this process resulted in a reduction in surface O/C ratio and a 90% increase in hydrophobicity. Since oxiranes react directly with hydroxyl groups and other functional groups this method may provide a new enzymatic non-targeted approach for the functionalisation of various polymeric materials.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Biochemistry - Volume 45, Issue 9, September 2010, Pages 1557–1562
نویسندگان
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