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  • 08월 24일 19시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Synthesis and Characterization of Energetic Prepoly(GDPC) and Its Elastomers

등록일
2005년 8월 11일 10시 28분 21초
접수번호
0721
발표코드
19P15포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
토 <발표Ⅲ>
발표형식
포스터
발표분야
고분자화학
저자 및
공동저자
전용구
국방과학연구소 화약연구팀,
We synthesized an energetic prepolymer(glycidyl dinitro propyl formal, GDNPF) and measured its thermodynamic parameters. Glycidyl dinitro propyl formal(GDNPF) as an energetic monomer was epoxidized from allyl-2,2-dinitro propyl formal which is reacted with dinitro propyl alcohol and excess allyl alcohol, and then energetic polymer of GDNPF was polymerized by cationic polymerization. The activated monomer polymerization has been executed with precisely controlled feed of GDNPF monomer to reactor in the complex state catalyst generated by BF3∙(C2H5)2 and 1,4-butanediol in C2H4Cl2. Synthesis of poly(GDNPF) thermoplastic elastomers were prepared from the appropriate Poly(GDNPF) prepolymer, diisocyanate MDI, TDI and chain extender(BD) in dichloroethane. The following properties of TPE-PGMB-XX's are melting temperatures high enough for useful mechanical properties and low enough for safe processing (-70 to 100℃) ;crystallization rate of 5 to 10 minutes at room temperature; glass transition temperatures of -15 to -30℃; controllable molecular weights(Mw) from 10,000 to 30,000; molecular weight distributions of 1.4 to 2.4. Analytical techniques were developed and have provided of the polymerization mechanism.

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