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|
| Type |
Poster Presentation |
| Area |
Polymer Chemistry |
| Room No. |
Exhibition Hall 2+3 |
| Time |
10월 20일 (금요일) 13:00~14:30 |
| Code |
POLY.P-1 |
| Subject |
Iron-Catalyzed Direct Azidation of Polybutadiene and Consecutive Click-Reaction |
| Authors |
Haeji Jung, Yeong Gweon Lim*
Agency for Defense Development, Korea
|
| Abstract |
Azides have been widely utilized as precursors leading to formation of amines and synthesis of nitrene. Therefore organic azides have played important role in various scientific fields. Numerous synthetic protocols and applications have been developed, but there are a few reports describing the direct azidation of polymer. Recently, several groups obtained azido-functionalized polymer by using combination of trimethylsilyl azide and iodine compound through single-step substitution reaction.
In this work, the research on synthesis of azidated phenyl-terminated polybutadiene(PtPB) introduced azide groups to alkenes was described. Polybutadiene is appropriate for prepolymer applied to binder of composite propellants due to their excellent mechanical properties, sufficient desensitization toward impact and friction, and good low-temperature elongation. To improve the weakness of polybutadiene such as non-energetic polymer, introduction of azide groups into PB was conducted. Synthesis of three different types of azidated PtPB having 5, 10, 15% substitution rates was established by iron-catalyzed radical reaction under optimized reaction conditions. Moreover, resulting azido-functionalized PtPBs were reacted with alkyne to obtain the triazole-containing polymer. |
| E-mail |
ppqpqpq@gmail.com |
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120th General Meeting of the KCS