کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4513861 1624863 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Conversion of agricultural by-products to methyl cellulose
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Conversion of agricultural by-products to methyl cellulose
چکیده انگلیسی

Agricultural residues are attractive raw materials for the production of industrial polymers because they are renewable and biodegradable, involve less toxic materials during manufacturing, add value to agricultural by-products, and decrease the global dependence on petroleum-based feedstock. In this work, it has been shown that agricultural residues such as wheat straw, barley straw, and rice hull can be converted to methyl cellulose, an industrial polymer used as adhesives, protective coatings, personal care, and in agriculture. Weight yields range from 30 to 70%. The degree of substitution (DS) varies from 0.8 to 2.8. In addition, the methyl cellulose can be further converted to acetylated methyl cellulose. These products have been characterized via NMR analysis.


► The cellulose in wheat straw, barley straw, and rice hull was converted into methyl cellulose after acid or alkaline peroxide pre-treatment.
► Depending on the procedure used, weight yields ranged from 30 to 70% and DS ranged from 0.5 to 2.8.
► The methyl cellulose was amenable to acetylation reaction, and fully acetylated methyl cellulose was obtained as well.
► Since wheat straw, barley straw, and rice hull are relatively cheap and abundant, the resulting cellulosic materials may be used as valued-added products for industrial applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Industrial Crops and Products - Volume 46, April 2013, Pages 297–300
نویسندگان
, , , ,