4 edition of Synthesis of imide/arylene ether copolymers for adhesives and composite matrices found in the catalog.
Synthesis of imide/arylene ether copolymers for adhesives and composite matrices
by National Aeronautics and Space Administration, Langley Research Center in Hampton, Va
Written in English
|Statement||B. J. Jensen, P. M. Hergenrother, R. G. Bass.|
|Series||NASA technical memorandum -- 104067.|
|Contributions||Hergenrother, P. M., Bass, R. G., Langley Research Center.|
|The Physical Object|
Virginia Commonwealth University VCU Scholars Compass Theses and Dissertations Graduate School Imide/Arylene Ether Copolymers Brian J. Jensen Follow this and additional worksCited by: 1. This book describes advances in synthesis, processing, and technology of environmentally friendly polymers generated from renewable resources. ether performance polymers synthesis acid liquid poly groups thermal resins copolymers engineering plastics polymers and engineering
Oxidative polymerization of 2,6-dimethylphenol catalyzed by copper-amine complexes provides a convenient method to synthesize poly(2,6-dimethyl-1,4- phenylene ether Author: Daisuke Yoshii, Hidenori Murata, Kenichi Oyaizu, Makoto Yuasa. - "Chemistry and Properties of Imide Oligomers Containing Pendant and Terminal Phenylethynyl Groups", Joseph P. Smith, NASA Langley Research Center, USA p. 29 - "Synthesis and Characterization of High Temperature Curable Poly(arylene ether) Structural Adhesive and Composite Matrices", S. J. Mecham, S.
The present invention relates generally to high performance structural resins for advanced aerospace applications. It relates in particular to a series of imide/arylene ether block copolymers which find special utility as adhesives and composites. 2. Description of Related Art. Most of these crystalline block copolymers form tough, solvent resistant films with high tensile properties. While all of the copolymers produced by the present invention are crystalline, testing reveals that copolymers with longer imide blocks or higher imide .
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Contains an arylene ether ketone segment identical to that in the arylene ether block. One copolymer was selected for molecular weight control and end-capping studies to improve the compression moldability. This material was evaluated as an adhesive and composite matrix resin. A few copolymers containing imide blocks and other blocks have bccn reported.
The copolymers containing imide. Get this from a library. Synthesis of imide/arylene ether copolymers for adhesives and composite matrices. [B J Jensen; P M Hergenrother; R G Bass; Langley Research Center.]. Synthesis of imide/arylene ether copolymers for adhesives and R. and Langley Research Center.
Synthesis of imide/arylene ether copolymers for adhesives and composite matrices [microform B. & Hergenrother, P. & Bass, R. & Langley Research Center.Synthesis of imide/arylene ether copolymers for adhesives.
A series of imide/arylene ether copolymers were prepared from the reaction of an amorphous arylene ether oligomer and a semi-crystalline imide oligomer.
These copolymers were thermally characterized and mechanical properties were measured. One block copolymer was endcapped and the molecular weight was controlled to provide a material that displayed good compression moldability and attractive adhesion.
Free 2-day shipping. Buy Synthesis of Imide/Arylene Ether Copolymers for Adhesives and Composite Matrices at Synthesis of imide/arylene ether copolymers for adhesives and composite matrices eBook: National Aeronautics and Space Administration NASA: : Kindle StoreAuthor: National Aeronautics and Space Administration NASA.
Synthesis and characterization of poly(arylene ether sulfone) copolymers with sulfonimide side groups for a proton‐exchange membrane. o-Diamino-terminated polybenzimidazole oligomers (PBI) with the same molecular weight of BPS oligomers were synthesized via step-growth polymerization in polyphosphoric acid ().The molecular weight and diamine end group functionality of the oligomers were controlled by offsetting monomer stoichiometry.
The number-average molecular weight of each PBI Cited by: PAES polymers were synthesized according to Scheme 1. (a) Bisphenol A-based polymers (PAES1): In a 50 ml flask, equipped with a Dean-Stark trap, reflux condenser, bisphenol A (1) ( g), 1,1 ′-sulfonylbis(4-chloro)benzene ( g) and potassium carbonate ( g) were dissolved in a mixture of 10 ml DMAc and 10 ml mixture was refluxed at – Cited by: The general approaches for the synthesis of poly (arylene ether)s include electrophilic aromatic substitution, nucleophilic aromatic substitution, and metal-catalyzed coupling reactions.
Thus, the block copolymers showed higher values than Nafion, andcomparable proton conductivities in liquid water, as well as under partially hydrated conditions at 80°C. The new materials are strong candidates for use in PEM by: USB1 US09/, USA USB1 US B1 US B1 US B1 US A US A US A US B1 US B1 US B1 Authority US United States Prior art keywords poly arylene ether group primary ch Prior art date Legal status (The legal status is an assumption and is not a legal Cited by: USA US07/, USA USA US A US A US A US A US A US A US A US A US A Authority US United States Prior art keywords poly arylene ether ar imide block Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
1. Kobayashi M, Terayama Y, Yamaguchi H, Terada M, Murakami D, Ishihara K, Takahara A () Wettability and antifouling behavior on the surfaces of superhydrophilic polymer by: 1. Synthesis and Properties of Polyarylene ether Nitrile Copolymers.
Polyether nitrile and its copolymers were synthesized by nucleophilic substitution reaction of 2,6-dichlorobenzonitrile with resorcinol and with varying mole proportions of resorcinol and hydroquinone. The polymers were characterized by different physico-chemical techniques. Abstract: Poly(arylene ether sulfone ketone) (SPESK) multiblock copolymers having highly sulfonated hydrophilic blocks were synthesized and the fuel cell performance with the copolymers was investigated.
A membrane electrode assembly (MEA) using an SPESK ionomer. Nieves Ureña, María Teresa Pérez-Prior, Carmen del Río, Alejandro Várez, Jean-Yves Sanchez, Cristina Iojoiu and Belén Levenfeld, Multiblock copolymers of sulfonated PSU/PPSU Poly(ether sulfone)s as solid electrolytes for proton exchange membrane fuel cells, Electrochimica Acta, /cta, ().
Imide/arylene ether copolymers with pendent trifluoromethyl groups. Hampton, Va.: [Springfield, Va: National Aeronautics and Space Administration, Langley Research Center ; For sale by the National Technical Information Service.
MLA Citation. Jensen, Brian J. and Havens, Stephen J. and Langley Research Center. High molecular weight amorphous poly (arylene ether sulfone) thermoplastic materials display many of these desirable characteristics but are deficient in solvent resistance.
Synthesis and Characterization of Sulfonated Poly(ether imide) with Higher Thermal Stability and Effect on CO 2, N 2, and O 2 Permeabilities Michelle S. Chã a, Paula P. Bittencourt, Maria E. Senab, Marcio L. Paredes, Gabriela F. Moreirac, Rodrigo A. Reisa* aPPGEQ, Instituto de Química, Universidade Estadual do Rio de Janeiro – UERJ, Campus Maracanã.
Synthesis and characterization of high temperature curable poly(arylene ether) structural adhesives and composite matrices.IMIDE/ARYLENE ETHER BLOCK COPOLYMERS B.
J. Jensen, P. M. Hergenrother and R. G. Bass* NASA Langley Research Center Hampton, VA INTRODUCTION As part of an effort to develop high performance structural resins with an attractive combination of properties, block copolymers containing an arylene ether and an imide segment were synthesized.Together with new experiments in chapter 3,4 and 5 the book now contains more than recipes that describe a wide range of macromolecules.
From the reviews of recent editions: "This is an excellent book for all polymer chemists engaged in synthesis .