SYNTHESIS OF HYDROXYL-TERMINATED POLYBUTADIENE POSSESSING HIGH CONTENT OF 1,4-UNITS VIA ANIONIC POLYMERIZATION

Ji-ming Chen a; Zai-jun Lu a; Guang-qin Pan b; Yong-xin Qi b; Jian-jun Yi b; Hai-jian Bai b

doi:10.1007/s10118-010-9121-y

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SYNTHESIS OF HYDROXYL-TERMINATED POLYBUTADIENE POSSESSING HIGH CONTENT OF 1,4-UNITS VIA ANIONIC POLYMERIZATION

Papers | Updated：2021-06-21

- SYNTHESIS OF HYDROXYL-TERMINATED POLYBUTADIENE POSSESSING HIGH CONTENT OF 1,4-UNITS VIA ANIONIC POLYMERIZATION
- SYNTHESIS OF HYDROXYL-TERMINATED POLYBUTADIENE POSSESSING HIGH CONTENT OF 1,4-UNITS VIA ANIONIC POLYMERIZATION
- 高分子科学（英文版） 2010年28卷第5期页码：715-720
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- Author bio：
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- DOI：10.1007/s10118-010-9121-y
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- 纸质出版：2010-09-20
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Ji-ming Chen a, Zai-jun Lu a, Guang-qin Pan b, 等. SYNTHESIS OF HYDROXYL-TERMINATED POLYBUTADIENE POSSESSING HIGH CONTENT OF 1,4-UNITS VIA ANIONIC POLYMERIZATION[J]. 高分子科学（英文版）, 2010,28(5):715-720.

Ji-ming Chen a, b, Zai-jun Lu a, et al. SYNTHESIS OF HYDROXYL-TERMINATED POLYBUTADIENE POSSESSING HIGH CONTENT OF 1,4-UNITS VIA ANIONIC POLYMERIZATION[J]. 2010, 28(5): 715-720.
Ji-ming Chen a, Zai-jun Lu a, Guang-qin Pan b, 等. SYNTHESIS OF HYDROXYL-TERMINATED POLYBUTADIENE POSSESSING HIGH CONTENT OF 1,4-UNITS VIA ANIONIC POLYMERIZATION[J]. 高分子科学（英文版）, 2010,28(5):715-720. DOI： 10.1007/s10118-010-9121-y.

Ji-ming Chen a, b, Zai-jun Lu a, et al. SYNTHESIS OF HYDROXYL-TERMINATED POLYBUTADIENE POSSESSING HIGH CONTENT OF 1,4-UNITS VIA ANIONIC POLYMERIZATION[J]. 2010, 28(5): 715-720. DOI： 10.1007/s10118-010-9121-y.

摘要

The hydroxyl-terminated polybutadiene (HTPB) possessing high content of 1

4-units was synthesized by anionic polymerization of butadiene

using alkyllithium containing silicon-protected hydroxyl group as initiator and cyclohexane as solvent. The polymers were characterized by GPC

IR and 1H-NMR. The mechanical properties of cured films were also evaluated. The results show that the content of 1

4-units for HTPBs made by anionic polymerization reaches up to 90%. The molecular weight distribution is very narrow (≤ 1.05). The functionality of hydroxyl groups approaches 2. Compared with free radical HTPB

the elongation at break of anionic HTPB films increased by 70%

while the tensile strength remained nearly unchanged. This new HTPB can be very useful in solid propellant.

Abstract

The hydroxyl-terminated polybutadiene (HTPB) possessing high content of 1

4-units was synthesized by anionic polymerization of butadiene

using alkyllithium containing silicon-protected hydroxyl group as initiator and cyclohexane as solvent. The polymers were characterized by GPC

IR and 1H-NMR. The mechanical properties of cured films were also evaluated. The results show that the content of 1

the elongation at break of anionic HTPB films increased by 70%

while the tensile strength remained nearly unchanged. This new HTPB can be very useful in solid propellant.

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