SYNTHESIS AND CATALYTIC APPLICATION OF 1,1,3,3-TETRAMETHYLGUANIDINE MODIFIED GRAPHENE OXIDE
محل انتشار: چهارمین همایش ملی شیمی،پتروشیمی و نانو ایران
سال انتشار: 1395
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 383
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شناسه ملی سند علمی:
TCPCO04_200
تاریخ نمایه سازی: 8 اردیبهشت 1396
چکیده مقاله:
Graphene oxide (GO) was synthesized and functionalized with (3-chloropropyl)-trimethoxysilane (CPTMS) and then with 1,1,3,3-tetramethylguanidine (TMG) to produce GO-Si-TMG. The resultant material was characterized by elemental analysis, FT-IR, TGA and FE-SEM spectroscopy and was used in Michael addition of different C-nucleophiles to various substituted nitrostyrenes to explore its catalytic activity. GO-Si-TMG showed very good catalytic activity and gave a conversion of > 99.99 % (based on 1H NMR of the crude reaction mixture) under the optimized reaction conditions (r.t., EtOH-H2O (1:1), 1.5 h). Moreover, it could be easily recovered through filtration and reused for at least seven times without significant decrease in its catalytic performance.
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نویسندگان
N Porahamd
Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
R Baharfar
Faculty of Chemistry, University of Mazandaran, Babolsar, Iran