Results 141 to 150 of about 183,821 (192)

Study of Styrene Butadiene Rubber Reinforced by Polybutadiene Liquid Rubber-Modified Silica. [PDF]

open access: yesPolymers (Basel)
Liao Q   +7 more
europepmc   +1 more source

Characterization of hydroxyl-terminated polybutadiene

Polymer Bulletin, 1997
The structures of hydroxyl terminated polybutadienes (HTPB) obtained by free radical polymerization of butadiene in ethanol medium initiated by thermal and photochemical hydrogen peroxide decomposition were studied. The incorporation of alcohol in the polymer chain ends was evidenced by 1 H and 13 C NMR spectroscopy.
W. D. Vilar   +3 more
openaire   +2 more sources

Characterization of hydroxyl-terminated polybutadiene

Polymer Bulletin, 1994
Commercial samples of hydroxyl terminated polybutadienes (HTPB) were analysed by 1H and 13C NMR spectroscopy, in regard to hydroxylated end groups. The results were discussed and compared with those reported so far.
W. D. Vilar   +2 more
openaire   +2 more sources

Synthesis of Azide-Functionalized Hydroxyl-Terminated Polybutadiene

Journal of Energetic Materials, 2016
This 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).
Pawan K Khanna, Shaibal Banerjee
exaly   +2 more sources

Functional Alkyl-Ferrocene Grafted Hydroxyl Terminated Polybutadiene

ChemistrySelect, 2021
Abstract Grafting of functional ferrocene molecules in the backbone of hydroxyl terminated polybutadiene (HTPB) without altering physical characteristics such as viscosity, hydroxyl value, molecular weight of the pristine HTPB remains as an important challenge owing to the difficulty in synthesizing appropriate functional ferrocene ...
Tushar Jana   +2 more
exaly   +2 more sources

Cleavable polybutadiene rubber: A versatile precursor to hydroxyl-terminated or multi-hydroxyl polybutadiene and polyethylene

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, Anqi Wang
exaly   +2 more sources

Characterization of hydroxyl-terminated polybutadiene

Polymer Bulletin, 1995
A 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
openaire   +1 more source

The molecular characteristics of hydroxyl-terminated polybutadiene

British Polymer Journal, 1985
AbstractThree 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.
Colin Booth
exaly   +2 more sources

Molecular characterization of hydroxyl‐terminated polybutadienes

Journal of Applied Polymer Science, 1984
AbstractA 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
openaire   +1 more source

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