Synthesis and Characterization of Glycidyl Methacrylate-Grafted Ethylene-Propylene Diene Terpolymer Employing Styrene as a Comonomer

Document Type : Original Article

Authors
Marzieh Alidadi-Shamsabadi 1
Shirin Shokoohi 2
1 Chemistry & Chemical Engineering Technical Centre, Academic Centre for Education, Culture and Research (ACECR), Isfahan University of Technology branch, Isfahan, Iran
2 Chemical, Polymeric and Petrochemical Technology Development Research Division, Research Institute of Petroleum Industry, Tehran, Iran
20.1001.1/jgt.2024.2020577.1032
Abstract
Melt free-radical grafting reactions between ethylene-propylene-diene terpolymer (EPDM) and glycidyl methacrylate (GMA) were studied in a batch mixer at 170°C and 60rpm, with and without styrene (St) comonomer. Effect of dicumyl peroxide (DCP) initiator, GMA and styrene concentrations were studied on the grafted EPDM characteristics. Titration results indicated an increase in the graft degree (GD) and gel content (GC) values with increasing DCP concentration. Whereas, introduction of St led to 132% increase in GD and 39% decrease in GC which might be ascribed to its effect on restricting crosslinking side-reaction. FTIR spectrums confirmed that GMA has been successfully grafted onto EPDM.

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Article Title Persian

سنتز و مشخصه‌یابی اتیلن پروپیلن دی ان مونومر پیوند خورده با گلایسیدیل متاکریلات از طریق کومونومر استایرن

Authors Persian

مرضیه علیدادی شمس آبادی 1
شیرین شکوهی 2
1 مرکز فنی شیمی و مهندسی شیمی، جهاد دانشگاهی واحد صنعتی اصفهان، اصفهان، ایران
2 پژوهشکده توسعه فناوری‌های شیمیایی، پلیمری و پتروشیمیایی، پژوهشگاه صنعت نفت، تهران، ایران
Abstract Persian

واکنش پیوند رادیکال آزاد مذاب بین اتیلن-پروپیلن-دی ان مونومر (EPDM) و گلیسیدیل متااکریلیت (GMA) در حضور و غیاب کومونومر استایرن (St) در مخلوط‌کن داخلی (۱۷۰ سیلسیوس، ۶۰ دور بر دقیقه) بررسی شد. اثر غلظت آغازگر دی کیومیل پراکساید (DCP)، GMA و St بر پیوند بین EPDM و GMA مطالعه شد. نتایج تیتراسیون افزایش مقادیر درجه پیوند (GD) و میزان ژل (GC) را با افزایش غلظت DCP نشان داد. در حالی که کاربرد St، با جلوگیری از ورود ماکرورادیکال‌ها به واکنش جانبی ژل شدن، منجر به افزایش ۱۳۹% برای GD و کاهش ۳۹% برای GC شد. نتایج FTIR پیوند GMA بر روی زنجیره‌های EPDM را تائید کرد.

Keywords Persian

پیوند رادیکال آزاد
گلایسیدیل متاکریلات
اتیلن-پروپیلن-دی ان مونومر
کومونومر
میزان ژل
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Journal of Gas Technology
Volume 8, Issue 1 - Serial Number 10
September 2023
Pages 35-41