Results 91 to 100 of about 19,854 (229)

Evaluation of coated QCM for the detection of atmospheric ozone [PDF]

open access: yes, 2011
A coated acoustic wave sensor has been developed to selectively detect atmospheric ozone. The selective detection has been assessed using a variety of coatings: beeswax, gallic acid, indigo carmine, polybutadiene, potassium iodide and sodium nitrite ...
Muller, JBA   +3 more
core   +1 more source

Prepolymer dianhydrides [PDF]

open access: yes, 1980
A process for preparing dianhydrides that are miscible with hydroxyl prepolymers at moderate temperatures and can cure hydroxyl prepolymers to elastomers at moderate temperatures is disclosed.
Ingham, J. D., Rhein, R. A.
core   +1 more source

Synthesis and characterization of polyurethane based on hydroxyl terminated polybutadiene and reinforced by carbon nanotubes

open access: yesEgyptian Journal of Petroleum, 2015
Nanocomposites consisting of multi wall carbon wall carbon nano tubes MWCNT/polyurethane (PU) had been successfully prepared based on hydroxy terminated polybutadiene HTPB and the prepared MWCNT.
S.A. Shokry   +4 more
doaj   +1 more source

Review of solid propellants for space exploration [PDF]

open access: yes
Solid propellants for space vehicles and spacecraft fuel ...
Hendel, F. J.
core   +1 more source

A theory for the thermal conductivity of highly viscous chain-like polymer melts [PDF]

open access: yesAIP Advances
Polymers play a key role in many modern electronic applications. Conventional pure (unfilled) polymers, with inherently low thermal conductivity (6×106Da) of polyethylene, polyethylene oxide, and polybutadiene may exhibit giant thermal conductivity ...
Konstantin V. Fenchenko
doaj   +1 more source

Encapsulation of DNA by cationic diblock copolymer vesicles

open access: yes, 2004
Encapsulation of dsDNA fragments (contour length 54 nm) by the cationic diblock copolymer poly(butadiene-b-N-methyl 4-vinyl pyridinium) [PBd-b-P4VPQ] has been studied with phase contrast, polarized light, and fluorescence microscopy, as well as scanning ...
Jesse, W.   +2 more
core   +1 more source

Degradation mechanism, hydrocarbon polymers Final technical report [PDF]

open access: yes
Degradation of hydrocarbon polymers by exposure to 275 F for 400 hours in presence and in absence of ammonium ...
Hamermesh, C. L.
core   +1 more source

High performance ammonium nitrate propellant [PDF]

open access: yes, 1979
A high performance propellant having greatly reduced hydrogen chloride emission is presented. It is comprised of: (1) a minor amount of hydrocarbon binder (10-15%), (2) at least 85% solids including ammonium nitrate as the primary oxidizer (about 40% to ...
Anderson, F. A.
core   +1 more source

Recyclable high-strength polybutadiene-based rubber with self-healing and shape memory properties via dynamic boronic ester and Diels-Alder chemistry

open access: yeseXPRESS Polymer Letters
Dynamic cross-linked networks (DCNs) endow thermoset rubber with self-healability and recyclability to extend its lifetime and alleviate environmental pollution.
Shengao Yang   +8 more
doaj   +1 more source

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