Hydroxyl-terminated polybutadiene (HTPB) is an oligomer of butadiene terminated at each end with a hydroxyl functional group. It reacts with isocyanates to form polyurethane polymers. HTPB is a translucent liquid with a color similar to wax paper and a viscosity similar to corn syrup.

Nov 2, 2019 · Chemically similar to polybutadiene acrylonitrile (PBAN) and carboxyl- terminated polybutadiene (CTPB) [1], HTPB was recognized by rocket scientists as far back as the early 1960s as offering new opportunities to improved performance and …

Mar 1, 2023 · Hydroxyl-terminated polybutadiene (HTPB) is a flexible telechelic compound with a main chain containing a slightly cross-linked activated carbon–carbon double bond and a hydroxyl group at the end. Therefore, in this paper, HTPB was used as a terminal diol prepolymer, and sulfonate AAS and carboxylic acid DMPA were

Hydroxy Terminated Polybutadiene resin is regulated by the United States Department of Commerce and may not be exported without license from that organization. HO 0.6 0.2 0.2 n OH DESCRIPTION Hydroxy Terminated Polybutadiene (HTPB) resin is a liquid hydroxyl terminated polymer of butadiene. HTPB resins have primary allylic

Apr 1, 2022 · This paper reviews hydroxyl‐terminal polybutadiene (HTPB) used as liner and binder for composite propellants, applied in rocket motors studied throughout the last decades, emphasizing the...

Poly bd® resins are low molecular weight, hydroxyl-terminated homopolymers of butadiene. These resins are characterized by low volatiles content, low glass transition temperatures, excellent hydrophobicity, and a high level of reactive functionality.

Jan 6, 2025 · Hydroxyl-terminated polybutadiene (HTPB) is a liquid rubber with a long non-polar carbon chain. Because of its low glass transition temperature, high elasticity, high water resistance, and hydrophobicity, HTPB is widely used in …

"Hydroxyl Terminated Poly butadiene™" is a polybutadiene-type liquid polymer with a highly reactive hydroxyl group at the end of the molecule. Like conventional polyurethane, it easily reacts and cures with isocyanates, forming a good urethane-based elastomer (rubber elastic body).

Oct 31, 2014 · Hydroxyl-terminated polybutadiene (HTPB) with high cis-1,4 content (>95.0%) has been prepared via a two-step method by taking commercial butadiene rubber (BR9000) as a starting material, including the one-pot synthesis of aldehyde-group-terminated polybutadiene (ATPB) in high efficiency and the subsequent reduction reaction.

Aug 21, 2023 · Hydroxyl-terminated polybutadiene (HTPB) is a commonly used binding polymer in industry to produce polyurethanes. HTPB synthesis via allylic radical propagation leads to varied compositions and conformations that govern …