Results 71 to 80 of about 23,237 (180)

Vinyl capped addition polyimides [PDF]

open access: yes
Polyimide resins (PMR) are generally useful where high strength and temperature capabilities are required (at temperatures up to about 700 F). Polyimide resins are particularly useful in applications such as jet engine compressor components, for example,
Delvigs, Peter   +2 more
core   +1 more source

Solvent resistant copolyimide [PDF]

open access: yes, 1994
A solvent resistant copolyimide was prepared by reacting 4,4'-oxydiphthalic anhydride with a diaimine blend comprising, based on the total amount of the diamine blend, about 75 to 90 mole percent of 3,4'-oxydianiline and about 10 to 25 mole percent p ...
Chang, Alice C., St. Clair, Terry L.
core   +2 more sources

The Synthesis and Bioactivity Study of Anthraquinones, And the Isolation of Bioactive Compounds from Leea Indica (Burm.F.) Merr. [PDF]

open access: yes, 2005
Damnacanthal and nordamnacanthal were synthesized due to their interesting property as cytotoxic agents against several cancer cell-lines. Friedel-Craft condensation reaction has been used to prepare anthraquinone back-bone in view of its less ...
Saha, Koushik
core  

Secondary organic aerosol formation from photooxidation of naphthalene and alkylnaphthalenes: implications for oxidation of intermediate volatility organic compounds (IVOCs) [PDF]

open access: yes, 2009
Current atmospheric models do not include secondary organic aerosol (SOA) production from gas-phase reactions of polycyclic aromatic hydrocarbons (PAHs).
Chan, A. W. H.   +9 more
core  

Flame resistant elastic elastomeric fiber [PDF]

open access: yes, 1974
Compositions exhibit elastomeric properties and possess various degrees of flame resistance. First material polyurethane, incorporates halogen containing polyol and is flame resistant in air; second contains spandex elastomer with flame retardant ...
Howarth, J. T.   +3 more
core   +1 more source

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