کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1403765 | 984843 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sphere to disk transformation of micro-particle composed of azobenzene-containing amphiphilic diblock copolymers under irradiation at 436 nm
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Diblock copolymer composed of azobenzene-containing polyacrylate and poly(acrylic acid) (PAzoM-b-PAA) was prepared using reversible addition–fragmentation chain transfer (RAFT) radical polymerization, which was found to form micro-particles through self-assembly. Under irradiation of light at 436 nm sphere to disk transformation of the micron-particle was observed in situ through an optical microscope. Detailed spectral analysis showed that a disruption of H-aggregate of azobenzene units had taken place during the transformation, from which it is realized that possible driving force of the transformation comes from the photoinduced disruption of H-aggregates within the micro-particles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Polymer Journal - Volume 43, Issue 2, February 2007, Pages 657–662
Journal: European Polymer Journal - Volume 43, Issue 2, February 2007, Pages 657–662
نویسندگان
Wei Su, Hui Zhao, Zhong Wang, Yinmei Li, Qijin Zhang,