کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5210643 | 1382907 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A functional cross linked polymeric nanocapsule with pH-responsive brushes on its inner wall: Preparation, characterization and controlled release
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Carboxyl-functionalized cross linked polymeric nanocapsules (PAA-CPS) with pH-responsive poly(acrylic acid) (PAA) brushes on the inner wall of the crosslinked polystyrene (CPS) shells have been prepared by the template-polymerization approach via combination of surface-initiated atom transfer radical polymerization (SI-ATRP) and ultraviolet-irradiated crosslinking techniques. The hollow structure of the crosslinked nanocapsules with an inner diameter of about 30-40Â nm was confirmed by transmission electron microscopy (TEM). The adsorption experiments showed that the PAA-CPS nanocapsules possess a higher adsorption capacity towards the basic dye methylene blue (MB) than the PtBA-CPS nanocapsules. Furthermore, the MB-loaded PAA-CPS nanocapsules release the dye more rapidly in acidic medium than in a neutral medium.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 70, Issue 9, September 2010, Pages 578-584
Journal: Reactive and Functional Polymers - Volume 70, Issue 9, September 2010, Pages 578-584
نویسندگان
Bin Mu, Peng Liu, Qiaosheng Pu,