Results 61 to 70 of about 183,821 (190)

Synthesis and Characterization of an Azido Nitrofurazanyl Ether: An Energy‐Rich Heterocyclic Plasticizer With a Low Glass Transition Temperature

Propellants, Explosives, Pyrotechnics, Volume 51, Issue 8, Page 1365-1374, August 2026.
ABSTRACT We report on the synthesis and characterization of 3‐(2‐(2‐azidoethoxy)ethoxy)‐4‐nitro‐1,2,5‐oxadiazole (NFPEG2N3), which is a liquid nitrofurazanyl ether that was designed to be an energy‐rich plasticizer for glycidyl azide polymer (GAP)‐ and nitrocellulose (NC)‐based formulations.
P. Lieber, A. Omlor, U. Schaller, T. M. Klapötke   +3 more
wiley   +1 more source

Chemorheological Kinetic Modeling of Uncatalyzed Hydroxyl‐Terminated Polybutadiene and Isophorone Diisocyanate

Macromolecular Materials and Engineering
Catalysts are often employed to enable nonisothermal reaction kinetic studies when tracking cure progression of polyurethane reactions. However, when quickly reacting, catalyzed materials are prepared through mixing followed by the addition of fillers or
John P. Reynolds, Tiffany N. Thompson, Cailean Q. Pritchard, Michael D. Schulz, John J. La Scala, Michael J. Bortner   +5 more
doaj   +1 more source

Purification and Properties of Polyvinyl Nitrate and Its Compatibility With Solid Oxidizers

Propellants, Explosives, Pyrotechnics, Volume 51, Issue 8, Page 1224-1234, August 2026.
ABSTRACT Polyvinyl nitrate (PVN) is a nitrate‐ester energetic binder that can be produced directly from polyvinyl alcohol—a cheap commodity feedstock—thereby offering potential cost and supply‐chain advantages over binders based on nitrocellulose and other specialty polymers.
Stephen Spice, Monica C. Chandwani, Carole A. Morrison, Colin R. Pulham   +3 more
wiley   +1 more source

Long‐Term Marine‐Induced Aging Mechanisms in FDM‐Printed PC, ABS and HIPS: Molecular and Microstructural Evolution

Macromolecular Materials and Engineering, Volume 311, Issue 7, July 2026.
ABSTRACT Additive manufacturing by fused deposition modelling (FDM) has expanded the use of engineering thermoplastics in environments where long‐term durability remains insufficiently characterized. In this work, the molecular and microstructural aging mechanisms of FDM‐printed polycarbonate (PC), acrylonitrile–butadiene–styrene (ABS) and high‐impact ...
Esperanza Díaz, Yolanda Merodio, Igor Puerto, José Manuel Zubeldia‐Reina, Xabier León   +4 more
wiley   +1 more source

Controllable Energy Release of Boron@Tannic Acid@Ammonium Perchlorate Energetic Microunits Governed by Cu Single Atoms

Rare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Controllable energy release in solid propellants has always been a challenging technology, and extensive efforts have been devoted to the synthesis and application of catalysts to achieve its controllable release. In this study, tannic acid (TA) and its complexes (TA‐Cu) were introduced into boron@ammonium perchlorate (B@AP) composites using ...
Yong Kou, Ben Liu, Ronghuan Yang, Yongjun Gu, Xiaolong Fu, Qiangqiang Lu, Jiahao Yu, Jun Di, Guigao Liu, Lei Xiao, Fengqi Zhao, Wei Jiang, Gazi Hao   +12 more
wiley   +1 more source

Rheological and thermal properties of mixtures of hydroxyl-terminated polybutadiene and plasticizer (Rapid communication)

, 2018
Rheological and thermal properties of mixtures of hydroxyl-terminated polybutadiene and plasticizer (Rapid ...
Katarzyna Ganczyk-Specjalska (19567009), Karolina Jamroga (19567012), Lukasz Kufel (14696446), Tomasz Golofit (19567006)   +3 more
core  

COMBUSTION SIMULATION OF HYDROXYL-TERMINATED LIQUID POLYBUTADIENE, AMMONIUM PERCHLORATE AND ALUMINUM IN COMPOSITE SOLID PROPELLANT FORMULATIONS

, 2019
The present work presents combustion simulations of hydroxyl-terminated liquid polybutadiene loaded with ammonium perchlorate and aluminum, using Chemkin software and the “Plug Flow” type reactor.
Renata F. Cardoso (6544265), Elizabete Y. Kawachi (6544271), Rene F. B. Gonçalves (5161094), Luciene D. Villar (6544268)   +3 more
core   +1 more source

Hydroxyl‐Terminated Polybutadiene‐Based Molding Powders as an Alternative Route for Manufacturing Pressed Polymer‐Bonded Explosives

Propellants, Explosives, Pyrotechnics, Volume 51, Issue 6, Page 955-965, June 2026.
This study presents an alternative method to manufacture polymer‐bonded explosives by partially curing an HTPB‐based molding powder prior to compaction. The study shows that the length of partial cure time before compaction directly influenced the geometric fidelity, homogeneity, compressive strength, density, and internal microstructure.
Ismar L. Chew, Cole Stephens, Ellen Ma, Julio Hernandez, Monique S. McClain   +4 more
wiley   +1 more source

Effect of Various Alcohols and Reaction Time on the Properties of Hydroxyl Terminated Natural Rubber Synthesized via Oxidative Degradation

Chemical Engineering Transactions, 2017
The oxidative degradation of deproteinized natural rubber (DPNR) using cobalt bis(acetyl acetonate) in the presence of different alcohols and various reaction time; followed by reduction with sodium borohydride (NaBH4) for the synthesis of hydroxyl ...
N. Baharulrazi, S.H.C. Man, Z. Mohamad, H. Mohd Nor, W.K. Wan Ali   +4 more
doaj   +1 more source

ISOMERISASI POLIMER MELALUI REAKSI SAIN SAYEF UNTUK MENGUBAH KONFIGURASI HTPB (HYDROXYL TERMINATED POLYBUTADIENE) POLYMER ISOMERIZATION BY SAIN SAYEF REACTION TO MODIFY CONFIGURATION OF HTPB (HYDROXYL TERMINATED POLYBUTADIENE)

, 2017
One of the problems in the synthesis of Hydroxyl Terminated Polybutadiene for propellant binders is the level of vinyl is high (up to 30%), while the desired product is 20%.
Heru Budi Wibowo
core   +1 more source