کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5209365 1503049 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Morphology control of anisotropic nonspherical functional polymeric particles by one-pot dispersion polymerization
ترجمه فارسی عنوان
کنترل مورفولوژیک ذرات پلیمری عملکردی غیر فرسیکی با استفاده از یک پدیده پراکندگی پلیمریزاسیون
کلمات کلیدی
مرفولوژی، ذرات پلیمری کاربردی، بی نظیری، غیررسمی، جداسازی فاز،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی

A feasible and versatile route for a large-scale synthesis of monodisperse nonspherical functional polymer particles by one-pot dispersion polymerization was demonstrated. The particle morphology could be precisely tuned by varying the divinylbenzene (DVB) concentration, the start feeding time of DVB, the total feeding time of DVB, the styrene (St) mass ratio of stage I/stage II, and the solvent polarity. Sphere-like, polyhedron-like, and red blood cells (RBC)-like particles with dimples or smooth surface were obtained. In addition, the formation mechanism of these nonspherical particles was ascribed to the phase separation induced by the uneven distribution of cross-linked network. Because of the incompatibility between St homopolymer chain and cross-linked network, St homopolymer chain was forced to move to those zones where the blend was allowed. The particle surface was forced to distort, leading to the formation of particles with various morphologies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 112, March 2017, Pages 53-59
نویسندگان
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