کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7824245 | 1502867 | 2017 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of thermal oxidation on the self-assembly of triblock terpolymers
ترجمه فارسی عنوان
تأثیر اکسیداسیون حرارتی بر روی خودآموزی ترپلیمرهای سه پایه
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
This paper reports an investigation of the thermal degradation of a poly(styrene-b-butadiene-b-methyl methacrylate) triblock terpolymer compared with those of butadiene rubbers and poly(styrene-b-methyl methacrylate). According to sol-gel properties changes, it was proposed that polybutadiene blocks undergo mainly crosslinking. However, these latter coexist with chain scissions occurring in polybutadiene blocks, which generates poly(butadiene-b-methyl methacrylate) and poly(butadiene-b-styrene) diblock chains, and possibly chain scissions occurring in polystyrene and poly(methyl methacylate) blocks. The consequences of the degradation on the self-assembly of triblock terpolymer were studied through the annealing kinetics monitored by Atomic Force Microscopy. It appears that at low conversion degrees, chain scissions induce a faster self-assembly kinetics. At higher oxidation degrees, crosslinking of butadiene phase combined with scissions induces a “frozen” state at high annealing times characterized by a macrophase separation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 146, December 2017, Pages 229-239
Journal: Polymer Degradation and Stability - Volume 146, December 2017, Pages 229-239
نویسندگان
By Juan Sebastian Montana, Sébastien Roland, Guillaume Miquelard Garnier, Emmanuel Richaud,