固体火箭技术2017，Vol.40Issue(4)：456-460,5.DOI:10.7673/j.issn.1006-2793.2017.04.010
自由基型端羟基聚丁二烯反应活性的差异
Reactivity differences of free radicals type hydroxyl-terminated polybutadiene polymers
祝世杰 1涂善 2毛羽 2胡期伟 2唐承志 2庞爱民2
作者信息
- 1. 二炮驻8610厂军事代表室,宜昌 444200
- 2. 湖北航天化学技术研究所,襄阳 441003
- 折叠
摘要
Abstract
Chemical reactivity of two batches of free radical type I hydroxyl-terminated polybutadiene (HTPB) that has quite different mechanical properties are compared through FT-IR, chemical titration and curves of mechanical properties as a function of time.These parameters were analyzed using low temperature and room temperature viscous flow curves, glass transition temperature, density and other methods.It has been shown that the relative content of three loop structure unit on cis-1,4-structure,trans-1,4-structure and 1.2-structure of the radical type HTPB are close.Furthermore, the relative content of three hydroxyl type on α vinyl primary hydroxyl, trans and cis allyl hydroxyl are also close.There is no difference in reactivity of free radical type HTPBs.关键词
端羟基聚丁二烯/循环结构单元/羟基类型/反应活性/粘流曲线Key words
hydroxyl-terminated polybutadiene/loop structure unit/hydroxyl type/chemical reactivity/viscous flow curve分类
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祝世杰,涂善,毛羽,胡期伟,唐承志,庞爱民..自由基型端羟基聚丁二烯反应活性的差异[J].固体火箭技术,2017,40(4):456-460,5.
