کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5210710 1382911 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A continuous-flow electrophile scavenger prepared by a simple grafting procedure
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
A continuous-flow electrophile scavenger prepared by a simple grafting procedure
چکیده انگلیسی
A versatile method for grafting reactive polymer onto macroporous polymer monoliths has been developed, and this method used to prepare a monolith containing primary amines. Reactive polymer was grafted onto residual olefins within the crosslinked monoliths using free-radical polymerization, and without requiring any pre-grafting activation. Capacities of the grafted monoliths were easily controlled by altering the composition of the grafting solution. Grafting N-vinylacetamide, followed by amide cleavage using hydrazine, afforded a monolith containing primary amine groups that was used for efficient continuous-flow scavenging of isocyanates, with 92% of phenyl isocyanate removed from solution in a reaction with a residence time of 49 min. High levels of scavenging required only a small excess of polymeric amine.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 70, Issue 7, July 2010, Pages 414-418
نویسندگان
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