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Synthesis of Azide-Functionalized Hydroxyl-Terminated Polybutadiene
Journal of Energetic Materials, 2016This article reports ways to functionalize hydroxyl-terminated polybutadiene (HTPB) by azide groups to impart energetic properties to the polymer. Two different synthetic approaches were explored to synthesize azide-functionalized hydroxyl-terminated polybutadiene (azide-HTPB).
Shaibal Banerjee, Pawan K Khanna
exaly +2 more sources
Characterization of hydroxyl-terminated polybutadiene
Polymer Bulletin, 1995A comparison between the molecular structure of conventional and low molecular weight hydroxyl terminated polybutadienes (HTPBs) is presented. The conventional HTPB samples were R45M, R45HT (Atochem), Liquiflex P and H (Petroflex, Brazil), and the low molecular weight ones were R20LM (Atochem) and two laboratory synthesized materials.
W. D. Vilar +2 more
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Polymer, 2016
Abstract A series of hydroxyl functionalized polybutadienes has been prepared by combining the oxidolysis and reduction of cis-polybutadiene rubber (BR). For the first time, multi-hydroxyl polybutadiene (MHPB) with α,ω- and intrachain hydroxyl groups was synthesized through the simultaneous reduction of –CHO and epoxy groups in epoxidized aldehyde ...
Suyun Jie, Bo-Geng Li
exaly +2 more sources
Abstract A series of hydroxyl functionalized polybutadienes has been prepared by combining the oxidolysis and reduction of cis-polybutadiene rubber (BR). For the first time, multi-hydroxyl polybutadiene (MHPB) with α,ω- and intrachain hydroxyl groups was synthesized through the simultaneous reduction of –CHO and epoxy groups in epoxidized aldehyde ...
Suyun Jie, Bo-Geng Li
exaly +2 more sources
Molecular characterization of hydroxyl‐terminated polybutadienes
Journal of Applied Polymer Science, 1984AbstractA comparative study has been made on the functionality distribution of two hydroxyl terminated polybutadiene products which are used largely as prepolymers for sealants, adhesives, and solid propellants. They are known to possess nearly the same molecular characteristics.
Hiroshi Inagaki +3 more
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Laser pyrolysis of hydroxyl-terminated polybutadiene
Journal of Propulsion and Power, 1996A method was developed for measuring the dynamic regression rate and plume transmission loss during laser pyrolysis of polymeric binder materials. This method was applied to an investigation of the thermal decomposition of hydroxyl-terminated polybutadiene.
D. R. Esker, M. Q. Brewster
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Dynamic shearing resistance of hydroxyl-terminated polybutadiene (HTPB)
Journal of Applied Physics, 2021Hydroxyl-terminated polybutadiene (HTPB) is a widely used polymeric binder in polymer-bonded explosives (PBXs) and solid rocket propellants. Even though used in small fractions, the elastomeric binder absorbs much of the impact energy and therefore requires careful modeling of its mechanical behavior to accurately simulate the response of PBXs when ...
Pinkesh Malhotra +4 more
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The molecular characteristics of hydroxyl‐terminated polybutadiene
British Polymer Journal, 1985AbstractThree samples of a commercial hydroxyl‐terminated polybutadiene, Arco R45M. were characterised with respect to number‐average and weight‐average molar mass, intrinsic viscosity, number‐average hydroxyl functionality and effective functionality for gelation.
Peter R. Regan +4 more
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Azo initiators for the preparation of hydroxyl‐terminated polybutadienes
Journal of Polymer Science: Polymer Chemistry Edition, 1983AbstractAzo compounds such as di(4‐hydroxybutyl)‐2,2′‐azobisisobutyrate, di(3‐hydroxybutyl)‐2,2′‐azobisisobutyrate, di(2‐hydroxypropyl)‐2,2′‐azobisisobutyrate, and di(2‐hydroxyethyl)‐2,2′‐azobisisobutyrate were prepared and used as initiators for the preparation of hydroxyl‐terminated polybutadienes (HTPBs) of molecular weight (M̄n) ranging from 2000 ...
B. B. Idage +2 more
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Functionality Distribution of Carboxyl- and Hydroxyl-Terminated Polybutadiene
Journal of Macromolecular Science: Part A - Chemistry, 1973Abstract Elurion from silica gel was used to fractionate liquid polymers according to the number of chemically reactive groups per molecule (the functionality). Methods are presented for the functionality fractionation of high and low functionality carboxyl-terminated polybutadiene (CTPB).
M. S. Chang, D. M. French, P. L. Rogers
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Properties of hydroxyl‐terminated polybutadiene‐urethane systems
Journal of Applied Polymer Science, 1971AbstractThe properties of liquid hydroxyl‐terminated polybutadiene (HTPB) stocks crosslinked with isocyanates of different functionalities were intensively investigated. The stocks were modified by inclusion of small proportions of various low molecular weight diols to increase the urethane concentration. The following studies were carried out: (1) the
John P. Consaga, David M. French
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