کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5442569 | 1510764 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of the different chain transfer agents on molecular weight and optical properties of poly(methyl methacrylate)
ترجمه فارسی عنوان
اثر عوامل مختلف انتقال زنجیره ای بر وزن مولکولی و خواص نوری پلی متیل متاکریلات
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کلمات کلیدی
متیل متاکریلات، عامل انتقال زنجیره، پلیمریزاسیون فله وزن مولکولی، انتقال، پلیمرهای نوری،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
Investigation of molecular weight and optical properties of poly(methyl metacrylate) (PMMA) polymerized in house with different chain transfer agents was studied. Isopropyl alcohol (IPA), n-butyl mercaptan (nBMC) and pentamethyl disilane (PMDS) were used as chain transfer agents. The molecular weight (Mw) of PMMA samples were measured by Ostwald viscometer. Mw of bulk polymer samples were decreased with increase the concentration of chain transfer agents (CTA). Since reactivity of used CTAs is not same, molecular weights of samples which were produced with different type of CTA but same concentration of CTA was varied. Higher concentration of n-BMC showed higher scattering. Transmission of samples could not be correlated with different concentration of CTA. Refractive index of samples was not affected by concentration of CTA nevertheless higher molecular weight of CTA showed higher refractive index.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 70, August 2017, Pages 25-30
Journal: Optical Materials - Volume 70, August 2017, Pages 25-30
نویسندگان
Onur Ãetinkaya, Gökhan Demirci, PaweÅ Mergo,