TY - JOUR
T1 - Synthesis and characterization of PBAMO/GAP random block ETPE
AU - Li, Bing Jun
AU - Zhao, Yi Bo
AU - Li, Xiao Meng
AU - Luo, Yun Jun
N1 - Publisher Copyright:
©, 2015, Institute of Chemical Materials, China Academy of Engineering Physics. All right reserved.
PY - 2015/7/25
Y1 - 2015/7/25
N2 - The PBAMO/GAP random block energetic thermoplastic elastomer (ETPE) was synthesized via a solution polymerization using poly(3, 3-bis(azidomethyl)oxetane) (PBAMO) as hard segment prepolymer, glycidyl azide polymer (GAP) as soft segment prepolymer, toluene diisocyanate (TDI) as curing agent, 1, 4- butanediol (BDO) as chain extender. The structure of the ETPE was characterized by IR, gel permeation chromatography (GPC) and X-ray diffractomer (XRD). Results show that, the number average molecular weight of the copolymer can be up to above 34000. The imino groups of carbamate in the elastomer form the hydrogen bond with azido group, and the crystallinity of PBAMO in copolymer is 16.6%. The optimal experimental conditions obtained by optimizing the synthesis process are determined as:in the chain extension stage, T=130℃, t=40 h, Mn (PBAMO)=4100, m(PBAMO):m(GAP)=1:1, R=1.0, w (TDI+BDO)=30%.
AB - The PBAMO/GAP random block energetic thermoplastic elastomer (ETPE) was synthesized via a solution polymerization using poly(3, 3-bis(azidomethyl)oxetane) (PBAMO) as hard segment prepolymer, glycidyl azide polymer (GAP) as soft segment prepolymer, toluene diisocyanate (TDI) as curing agent, 1, 4- butanediol (BDO) as chain extender. The structure of the ETPE was characterized by IR, gel permeation chromatography (GPC) and X-ray diffractomer (XRD). Results show that, the number average molecular weight of the copolymer can be up to above 34000. The imino groups of carbamate in the elastomer form the hydrogen bond with azido group, and the crystallinity of PBAMO in copolymer is 16.6%. The optimal experimental conditions obtained by optimizing the synthesis process are determined as:in the chain extension stage, T=130℃, t=40 h, Mn (PBAMO)=4100, m(PBAMO):m(GAP)=1:1, R=1.0, w (TDI+BDO)=30%.
KW - Energetic binders
KW - Energetic thermoplastic elastomer (ETPE)
KW - Glycidyl azide polymer (GAP)
KW - Poly(3, 3-bis(azidomethyl)oxetane)(PBAMO)
UR - http://www.scopus.com/inward/record.url?scp=84938567461&partnerID=8YFLogxK
U2 - 10.11943/j.issn.1006-9941.2015.07.003
DO - 10.11943/j.issn.1006-9941.2015.07.003
M3 - Article
AN - SCOPUS:84938567461
SN - 1006-9941
VL - 23
SP - 624
EP - 628
JO - Hanneng Cailiao/Chinese Journal of Energetic Materials
JF - Hanneng Cailiao/Chinese Journal of Energetic Materials
IS - 7
ER -