Results 191 to 200 of about 3,611 (220)

Tensile property of modified hydroxyl-terminated polybutadiene-based polyurethanes

Journal of Applied Polymer Science, 1997
Modified hydroxyl-terminated polybutadiene (HTPB)-based polyurethanes (PUs) were prepared by three different processes: crosslinkage of the soft segment, complexation of the hard segment, and the interpenetrating network (IPN). Crosslinked PU films were prepared by the addition of a crosslinking agent of divinylbenzene (DVB) to the 4,4 ...
Shih-Liang Huang, Juin-Yir Lai
openaire   +1 more source

Functionality distribution and crosslink density of hydroxyl‐terminated polybutadiene

Polymer International, 1993
Abstract A novel approach is proposed for estimating the average molecular weight between crosslinks (M̄ c ) from the functionality distribution of hydroxyl‐terminated polybutadiene ( HTPB ). The functionality distribution of four free‐
K. N. Ninan, V. P. Balagangadharan, K. Ambikadevi, K. B. Catherine   +3 more
openaire   +1 more source

Chitin based polyurethanes using hydroxyl terminated polybutadiene, Part II: Morphological studies

International Journal of Biological Macromolecules, 2013
Chitin-hydroxyl terminated polybutadiene (HTPB) based polyurethane (PU) was prepared and structure of the pre-designed PU was confirmed using FT-IR spectrometer. The FT-IR analysis confirmed that the crosslinking density increased with increasing the chitin contents in the final PU.
Khalid Mahmood, Zia, Naureen Aziz, Qureshi, Mohammad, Mujahid, Kashif, Mahmood, Mohammad, Zuber   +4 more
openaire   +2 more sources

Chitin based polyurethanes using hydroxyl terminated polybutadiene. Part I: Molecular engineering

International Journal of Biological Macromolecules, 2013
Chitin based polyurethanes (PUs) using hydroxyl terminated polybutadiene (HTPB) as soft segment were prepared and the structure of the proposed PU was confirmed using FTIR spectrometer. PU prepolymer was prepared using HTPB and toluene-2,4-diisocyanate (TDI), and the chain was extended with different proportions of 1,4-butane diol (BDO) and chitin ...
Khalid Mahmood, Zia, Kashif, Mahmood, Mohammad, Zuber, Tahir, Jamil, Muhammad, Shafiq   +4 more
openaire   +2 more sources

Hydroxyl-terminated polybutadiene

Polymer Bulletin, 1997
W. D. Vilar, S. M. C. Menezes, P. R. Seidl   +2 more
openaire   +1 more source

NMR Analysis of Thermally‐Oxidized Hydroxyl‐Terminated Polybutadiene (HTPB)

ChemistrySelect
Abstract Nuclear magnetic resonance spectroscopy was employed to monitor the change in chemical structures, olefin units ( cis , trans and vinyl ) and hydroxyl value on stabilized Hydroxyl ...
Muhammad Irfan, Cheng Kai Pu, Zheng Gang Xiao, Ji Jun Xiao   +3 more
openaire   +1 more source

Short Timescale High Temperature Pyrolysis Products of Hydroxyl-Terminated Polybutadiene

SSRN Electronic Journal, 2022
Valeriia Karpovych, Evguenii Kozliak, Nataliia Haiduk, Mark Sulkes   +3 more
openaire   +1 more source

Synthesis and the characterization of hydroxyl terminated polybutadiene

2020
ABSTRACT SYNTHESIS AND THE CHARACTERIZATION OF HYDROXYL TERMINATED POLYBUTADHCNE Pehlivanoğlu, R. Koray M.S, Department of Chemistry Supervisor. Prof. Dr. Savaş KÜÇÜKVAYUZ Co-Supervisor: Prof. Dr. Saim ÖZKAR October 1997, 55 pages Hydroxyl terminated polybutadiene (HTPB) is used as a binder in solid rocket propellant.
openaire   +1 more source

Synthesis and structure of calcium silicate hydrate (C-S-H) modified by hydroxyl-terminated polydimethylsiloxane (PDMS)

Construction and Building Materials, 2021
An-Ming She
exaly  

Short timescale high temperature pyrolysis products of hydroxyl-terminated polybutadiene

Fuel, 2023
Valeriia Karpovych, Nataliia Haiduk, Mark Sulkes   +2 more
exaly