بررسی پارامترهای موثر بر سنتز کوپلیمرسه دسته‌ای گلیسیدیل آزید پلیمر - پلی بوتا دی ان خاتمه‌یافته با هیدروکسیل-گلیسیدیل آزید پلیمر

bayat, yadollah; didehban, khadije; Ghorbanian Delavar, melika

Volume 19, Issue 1 (3-2024) مواد پرانرژی 2024, 19(1): 25-32 | Back to browse issues page

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bayat Y, didehban K, Ghorbanian Delavar M. بررسی پارامترهای موثر بر سنتز کوپلیمرسه دسته‌ای گلیسیدیل آزید پلیمر - پلی بوتا دی ان خاتمه‌یافته با هیدروکسیل-گلیسیدیل آزید پلیمر. مواد پرانرژی 2024; 19 (1) :25-32
URL: http://isaem.ir/article-1-1509-en.html

بررسی پارامترهای موثر بر سنتز کوپلیمرسه دسته‌ای گلیسیدیل آزید پلیمر - پلی بوتا دی ان خاتمه‌یافته با هیدروکسیل-گلیسیدیل آزید پلیمر

Yadollah Bayat ^*

, Khadije Didehban

, Melika Ghorbanian Delavar

malek ashtar university of technology , ybayat70@yahoo.com

Abstract: (528 Views)

A glycidyl azide polymer hydroxyl terminated polybutadiene –glycidyl azide polymer (GAP-HTPB-GAP) triblock copolymer was synthesized with two steps. Firstly, the HTPB-PECH triblock copolymer was prepared via cationic ring-opening polymerization of epichlorohydrin using HTPB as an initiator. Subsequently, the final copolymer was produced through the azidation of the initial copolymer. The obtained product is characterized by ¹H and ¹³C-NMR spectroscopy, FT-IR, and gel permeation chromatography (GPC). The thermal behavior of the triblock copolymer was investigated by differential scanning calorimetry (DSC). The glass transition temperature (Tg) of the final copolymer was determined to be -55°C, indicating a favorable Tg value for the synthesized copolymer. Effective parameters for synthesis of copolymers was investigated. The optimized synthesis conditions for synthesis of the initial copolymer included a 1:5 ratio of HTPB initiator to epichlorohydrin monomer, toluene as the solvent, and a monomer rise time of 24 hours. The primary synthetic PECH-HTPB-PECH copolymer was obtained with yield of 90% and a molecular weight (Mn) of 2947 g/mol. The optimal conditions for the final copolymer synthesis included a solvent mixture of toluene/dimethylacetamide, an azidation temperature of 80°C, and a reaction time of 72 hours. The GAP-HTPB-GAP copolymers were obtained with yield of 96% and a molecular weight (Mn) of 3110 g/mol.

Keywords: Binder, Triblock Copolymer, GAP, HTPB, Optimization, Copolymer, Azidation

Full-Text [PDF 814 kb] (17 Downloads)

Type of Study: Research | Subject: سنتز، آناليز، کنترل کيفيت، فرمولاسيون و فرايندهاي توليد مواد پرانرژی (منفجره، پيروتکنيک و پيشرانه)
Published: 2024/11/16