کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1256465 971478 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dimethyl carbonate synthesis via transesterification catalyzed by quaternary ammonium salt functionalized chitosan
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Dimethyl carbonate synthesis via transesterification catalyzed by quaternary ammonium salt functionalized chitosan
چکیده انگلیسی

A quaternary ammonium salt covalently linked to chitosan was first used as a catalyst for dimethyl carbonate (DMC) synthesis by the transesterification of propylene carbonate (PC) with methanol. The effects of various reaction variables like reaction time, temperature and pressure on the catalytic performance were also investigated. 54% DMC yield and 71% PC conversion were obtained under the optimal reaction conditions. Notably, the catalyst was able to be reused with retention of high catalytic activity and selectivity. Consequently, the process presented here has great potential for industrial application due to its advantages such as stability, easy preparation from renewable biopolymer, and simple separation from products.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Chemical Letters - Volume 19, Issue 3, March 2008, Pages 286–290
نویسندگان
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