کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1443325 | 1509461 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photo-tunable multi-arm star azobenzene side-chain polymer with hyperbranched polyether core
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A hyperbranched polymer containing azo chromophore groups on the periphery has been successfully synthesized by atom transfer radical polymerization using hyperbranched polyester bearing peripheral bromoacetyl groups as the initiator and 4-[(E)-phenyldiazenyl]phenyl acrylate as monomer and CuBr/2,2′-bipyridine (bpy) as the catalyst. The resultant products were characterized by FT-IR, NMR, TEM, and EA. The photo-tunable azobenzene-functionalized hyperbranched polymer as well as the corresponding azo monomer showed photoresponsive behavior of the azobenzene type molecules. UV–vis spectra of the azobenzene-functionalized hyperbranched polymer in tetrahydrofuran showed isomerization of azobenzene units upon irradiation with UV (365 nm).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 158, Issues 17–18, October 2008, Pages 732–738
Journal: Synthetic Metals - Volume 158, Issues 17–18, October 2008, Pages 732–738
نویسندگان
Bin Mu, Ruoping Shen, Peng Liu,