Results 81 to 90 of about 11,450 (195)

Synthesis and Characterization of Novel Schiff Bases of Imide Moiety

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
    In our research novel schiff bases of imides moiety have been synthesized . Novel Schiff base derivatives of imides moiety have been synthesized by multistep reaction .
Sulaiman M. Hasan, Ali H. Samir, Ismaeel Y. majeed   +2 more
doaj  

Positron lifetime studies in thermoplastic polyimide test specimens [PDF]

Positron lifetime measurements were made in two thermoplastic polyimide materials recently developed at Langley. The long component lifetime values in polyimidesulfone samples are 847 + or - 81 Ps (dry) and 764 + or - 91 Ps (saturated). The corresponding
Holt, W. H., Mock, W., Jr., Singh, J. J., Stclair, T. L.   +3 more
core   +1 more source

amine imides

, 2014
Citation: 'amine imides' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00271 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Chemo- and Regioselectivity in the Reaction of Tetrachloro- and Tetrabromophthalic Anhydrides and Imides with Thiolates

CHIMIA, 1991
The reaction of tetrachloro- and tetrabromophthalic anhydrides and -imides with in situ generated aryl and alkyl thiolates gives mono- to tetrathio-substituted derivatives depending on reagent, stoichiometry, and reaction conditions.
Walter Fischer, Tammo Winkler
doaj   +2 more sources

Isomeric oxydiphthalic anhydride polyimides [PDF]

Much of the polyimide research at Langley Research Center has focused on isomeric modification of the diamine component; polyimides having considerably improved processability and adhesion have resulted.
Gerber, Margaret K., Pratt, J. Richard, Stclair, Terry L.   +2 more
core   +1 more source

imidic acids

, 2014
Citation: 'imidic acids' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.I02949 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Recent developments in polyimide adhesives at NASA-Langley Research Center [PDF]

Adhesive development is directed towards elevated temperature applications (200-300 C). Because of thermal stability considerations, the most attractive adhesives for this temperature range are linear and addition polyimides. The linear polymide adhesive
St.clair, T. L.
core   +1 more source

azo imides

, 2008
Citation: 'azo imides' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00561 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Studies on the use of supercritical ammonia for ceramic nitride synthesis and fabrication [PDF]

The extractability of ammonia halides (including ammonium thiocyanate) formed as byproducts from the synthesis of Si(NH)2 via ammonolysis of the corresponding silicon tetrahalides using supercritical NH3 as the extraction medium was investigated.
Cornell, Linda, Lin, Y. C., Philipp, Warren H.   +2 more
core   +1 more source

A review of high-temperature adhesives [PDF]

The development of high temperature adhesives and polyphenylquinoxalines (PPQ) is reported. Thermoplastic polyimides and linear PPQ adhesive are shown to have potential for bonding both metals and composite structures.
St.clair, A. K., St.clair, T. L.
core   +1 more source