کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10397938 889835 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Transition behavior, surface characteristics and film formation of functionalized poly(methyl methacrylate-co-butyl acrylate) particles
ترجمه فارسی عنوان
رفتار گذار، ویژگی های سطح و تشکیل پلیمر ذرات پلی (متیل متاکریلات- کوتی-بوتیل اکریلات)
کلمات کلیدی
پلیمریزاسیون امولسیون بدون صابون، تشکیل فیلم، تشکیل خوشه، مونومر یونیک،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Carboxylic functionalized poly(methyl methacrylate-co-butyl acrylate) particles were synthesized by soap free emulsion polymerization using sodium salts of itaconic acid and acrylic acid. Transition behaviors of these latexes in terms of glass transition of matrix and cluster were found to be completely different from those synthesized by solution polymerization. This disparity was attributed to the difference between co-monomers sequence distribution along the chains. Distribution of functional groups in the latexes was determined by conductometric titration. Film formation process of the latexes was also examined and interpreted based on the density of surface functional groups, transition behaviors, and particle size. AFM images revealed that, as the amount of these ionic co-monomers increases, more ordered films are obtained, while the particle inter-diffusion is greatly retarded. A dimensionless parameter indicating relative roughness of the films further supported the aforementioned findings.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Organic Coatings - Volume 77, Issue 11, November 2014, Pages 1826-1833
نویسندگان
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