Results 51 to 60 of about 12,723 (223)

Selectively Epoxidized Polyisoprene−Polybutadiene Block Copolymers

open access: yes, 2016
Selectively Epoxidized Polyisoprene−Polybutadiene Block ...
Jennifer M. Dean (3059727)   +3 more
core   +1 more source

Conjugated Polymers Engineered for Flexible/Stretchable Electronics

open access: yesJournal of Polymer Science, EarlyView.
This review highlights glass transition temperature (Tg) as the central parameter linking molecular structure to device performance in conjugated polymers. By tuning backbone rigidity, side‐chain architecture, and dynamic bonding, Tg governs the balance between π–π stacking–enabled charge transport and mechanical compliance.
Yunchong Yang   +5 more
wiley   +1 more source

Linear viscoelasticity of blends of polybutadiene and highly hydrogenated polybutadiene

open access: yesJournal of Rheology, 2000
Fil: Cassano, Guillermo A.. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Bahia Blanca. Planta Piloto de Ingenieria Quimica. Universidad Nacional del Sur.
Cassano, Guillermo A.   +2 more
openaire   +2 more sources

Viscometric study of high-cis polybutadiene in toluene solution

open access: yesJournal of the Brazilian Chemical Society, 2006
Viscometric measurements, in toluene solution at 30 ºC, were performed with high-cis polybutadiene synthesized by neodymium based catalyst. Six different equations were used to calculate intrinsic viscosities and viscosimetric constant values: Huggins ...
Mello Ivana L.   +3 more
doaj  

The Long Trajectory of Rubber Physics: 3500+ Years and Counting

open access: yesJournal of Polymer Science, EarlyView.
Natural rubber's trajectory is traced from Mesoamerican use of Castilla elastica through vulcanization and the pneumatic tire to macromolecular physics and modern solid‐state refrigeration. Illustrations of C. elastica and an H. brasiliensis plantation frame the historical progression from indigenous material, then industrial crop and on to advanced ...
Gregory B. McKenna
wiley   +1 more source

Molecular dynamics simulation of the dynamical mechanical analysis of polybutadiene

open access: yesPolymer Testing, 2022
Dynamical mechanical analysis (DMA) is an experimental technique to characterize the viscoelastic behavior of thermoplastic polymers versus the frequency, temperature, etc.
Sadollah Ebrahimi   +2 more
doaj   +1 more source

Effect of Hydroxyl‐Terminated Polybutadiene Grade on Rheology and Settling of High‐Solids Mixtures of Mock Propellants

open access: yesPropellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT The most common binder used in composite rocket propellants is based on the pre‐polymer hydroxyl‐terminated polybutadiene (HTPB). It has been shown to have excellent mechanical properties and a long life once crosslinked, and studies have examined the kinetics of crosslinking and pot life of energetic formulations with HTPB.
Laurel Hilger   +2 more
wiley   +1 more source

Porous Modified Calcium Carbonate as an Efficient Carrier for Gallic and Ascorbic Acids in Humidity‐Activated Oxygen Scavenging Systems

open access: yesPackaging Technology and Science, EarlyView.
Porous modified calcium carbonate (MCC) is presented as an efficient carrier for humidity‐activated oxygen scavengers based on gallic acid and ascorbic acid. The porous MCC structure preserves high accessibility of the active compounds, enabling effective oxygen scavenging under high relative humidity, with performance governed by loading level ...
Nastasia M. Coray   +6 more
wiley   +1 more source

Thermodynamic Interactions in a Model Polydiene/Polyolefin Blend Based on 1,2-Polybutadiene

open access: yes, 2018
Thermodynamic interactions in polydiene/polyolefin blends composed of 1,2-polybutadiene (1,2-PBD) and fully saturated (with deuterium) 1,2-PBD were explored with small-angle neutron scattering (SANS).
Jialin Qiu (5081603)   +5 more
core   +1 more source

Exceptionally strong, stiff and hard hybrid material based on an elastomer and isotropically shaped ceramic nanoparticles

open access: yesScientific Reports, 2017
In this work the fabrication of hard, stiff and strong nanocomposites based on polybutadiene and iron oxide nanoparticles is presented. The nanocomposites are fabricated via a general concept for mechanically superior nanocomposites not based on the ...
Prokopios Georgopanos   +10 more
doaj   +1 more source

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