Thermal decomposition properties of PBT-based energetic thermoplastic polyurethane elastomers with high content of soft segment

Zai Juan Zhang; Zhen Ge; Yun Jun Luo

Thermal decomposition properties of PBT-based energetic thermoplastic polyurethane elastomers with high content of soft segment

Zai Juan Zhang, Zhen Ge, Yun Jun Luo^*

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The 3, 3-bis (azidomethyl) oxetane/tetrahydrofuran (BAMO-THF) copolyether (PBT) bonded energetic thermoplastic polyurethane elastomers (ETPUE) were synthesized through prepolymer method using PBT and 4, 4'-diisocyanato-methylene dicyclohexane as raw material. Its glass transition temperature (T_g) was obtained by DSC, and the thermal decomposition behaviors were studied by TG and TG-FTIR-MS. The results show that with an increase in the content of hard segment, the T_gs and T_gh of soft segment and hard segment of ETPUE shift temperature upwards. The thermal decomposition process can be divided into four stages. The activation energy of thermal decomposition reaction for each stage is different. The first stage corresponds to the scission of the N₃ bonds. And then the main chain decomposition is induced.

Original language	English
Pages (from-to)	58-62
Number of pages	5
Journal	Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Volume	36
Issue number	5
Publication status	Published - 2013

Keywords

BAMO-THF (PBT)
Energetic thermoplastic polyurethane elastomer
Physical chemistry
Thermal decomposition

Cite this

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title = "Thermal decomposition properties of PBT-based energetic thermoplastic polyurethane elastomers with high content of soft segment",

abstract = "The 3, 3-bis (azidomethyl) oxetane/tetrahydrofuran (BAMO-THF) copolyether (PBT) bonded energetic thermoplastic polyurethane elastomers (ETPUE) were synthesized through prepolymer method using PBT and 4, 4'-diisocyanato-methylene dicyclohexane as raw material. Its glass transition temperature (Tg) was obtained by DSC, and the thermal decomposition behaviors were studied by TG and TG-FTIR-MS. The results show that with an increase in the content of hard segment, the Tgs and Tgh of soft segment and hard segment of ETPUE shift temperature upwards. The thermal decomposition process can be divided into four stages. The activation energy of thermal decomposition reaction for each stage is different. The first stage corresponds to the scission of the N3 bonds. And then the main chain decomposition is induced.",

keywords = "BAMO-THF (PBT), Energetic thermoplastic polyurethane elastomer, Physical chemistry, Thermal decomposition",

author = "Zhang, {Zai Juan} and Zhen Ge and Luo, {Yun Jun}",

year = "2013",

language = "English",

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journal = "Huozhayao Xuebao/Chinese Journal of Explosives and Propellants",

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number = "5",

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TY - JOUR

T1 - Thermal decomposition properties of PBT-based energetic thermoplastic polyurethane elastomers with high content of soft segment

AU - Zhang, Zai Juan

AU - Ge, Zhen

AU - Luo, Yun Jun

PY - 2013

Y1 - 2013

N2 - The 3, 3-bis (azidomethyl) oxetane/tetrahydrofuran (BAMO-THF) copolyether (PBT) bonded energetic thermoplastic polyurethane elastomers (ETPUE) were synthesized through prepolymer method using PBT and 4, 4'-diisocyanato-methylene dicyclohexane as raw material. Its glass transition temperature (Tg) was obtained by DSC, and the thermal decomposition behaviors were studied by TG and TG-FTIR-MS. The results show that with an increase in the content of hard segment, the Tgs and Tgh of soft segment and hard segment of ETPUE shift temperature upwards. The thermal decomposition process can be divided into four stages. The activation energy of thermal decomposition reaction for each stage is different. The first stage corresponds to the scission of the N3 bonds. And then the main chain decomposition is induced.

AB - The 3, 3-bis (azidomethyl) oxetane/tetrahydrofuran (BAMO-THF) copolyether (PBT) bonded energetic thermoplastic polyurethane elastomers (ETPUE) were synthesized through prepolymer method using PBT and 4, 4'-diisocyanato-methylene dicyclohexane as raw material. Its glass transition temperature (Tg) was obtained by DSC, and the thermal decomposition behaviors were studied by TG and TG-FTIR-MS. The results show that with an increase in the content of hard segment, the Tgs and Tgh of soft segment and hard segment of ETPUE shift temperature upwards. The thermal decomposition process can be divided into four stages. The activation energy of thermal decomposition reaction for each stage is different. The first stage corresponds to the scission of the N3 bonds. And then the main chain decomposition is induced.

KW - BAMO-THF (PBT)

KW - Energetic thermoplastic polyurethane elastomer

KW - Physical chemistry

KW - Thermal decomposition

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M3 - Article

AN - SCOPUS:84890854417

SN - 1007-7812

VL - 36

SP - 58

EP - 62

JO - Huozhayao Xuebao/Chinese Journal of Explosives and Propellants

JF - Huozhayao Xuebao/Chinese Journal of Explosives and Propellants

IS - 5

ER -

Thermal decomposition properties of PBT-based energetic thermoplastic polyurethane elastomers with high content of soft segment

Abstract

Keywords

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