3 edition of Adhesive properties of cured phenylethynyl containing imides found in the catalog.
Adhesive properties of cured phenylethynyl containing imides
1997 by National Aeronautics and Space Administration, Langley Research Center, National Technical Information Service, distributor in Hampton, Va, [Springfield, Va .
Written in English
|Statement||Alice C. Chang.|
|Series||NASA contractor report -- 201669., NASA contractor report -- NASA CR-201669.|
|Contributions||Langley Research Center.|
|The Physical Object|
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Get this from a library. Adhesive properties of cured phenylethynyl containing imides. [Alice C Chang; Langley Research Center.]. Phenylethynyl terminated oligoimides derived from 3,3′,4,4′-diphenylsulfonetetracarboxylic dianhydride and their adhesive properties Article in European Polymer Journal 45(4) Adhesive and composite properties obtained with cured acetylene-terminated isoimide oligomers are compatible to those of cured HR imide oligomers.
The high DP materials are excellent film formers and thus are useful for coating by: 9. Stanford Libraries' official online search tool for books, media, journals, databases, government documents and more. The properties of the cured imide oligomers containing pendent and terminal phenylethynyl groups are compared with those of cured oligomers of similar composition and molecular weight which.
These oligomers were obtained by the reaction of two moles of dianhydride (88) with one mole of 3,3′-[1,3-phenylenebis(oxy)]bisbenzeneamine (89) and two moles of 3-ethynylbenzeneamine (87).It has been demonstrated that 4-ethynylbenzeneamine is hydrolyzed into an acetyl group during the imide formation, so the meta isomer is used.
Thermal cyclization of oligomer (90) leads to an imide. Lacquers and molding compositions containing an anti-adhesive character producing and lubricity increasing amount of a polyester-containing polysiloxane corresponding to the formula ##STR1## wherein A, B and D each represent --CH 3 or --Z--R--Q; Z represents an alkylene group with 1 to 11 carbon atoms, --(CH 2) 2 SCH 2 --or --(CH 2) 3 NHCO--; R represents an aliphatic, cycloaliphatic or Cited by: Cured resins exhibit many desirable chemical and physical properties (eg, heat resistance, chemical resistance, adhesion retention, low shrinkage, wear resistance, and high dielectric strength) and provide electrical insulation protection It is widely used as a coating, as a composite matrix resin, and as a structural adhesive (eg, in the Author: サルニコブ，ドミトリー, エー． ジョージ，クレイトン.
Injectable Biocompatible Hydrogels from Cellulose Nanocrystals for Locally Targeted Sustained Drug Release; Backbone Hydrogen Bond Energies in Membrane Proteins Are Insensitive to Large Changes in Local Water Concentration.
Cano RJ and Jensen BJ ‘Effect of molecular weight on processing and adhesive properties of the phenylethynyl-terminated polyimide LARC-PETI-5’ Journal of Adhesion, v 60, n 1–4, p – CrossRef Google ScholarCited by: The tabs were bonded using a scrimmed epoxy film adhesive AF (3M, Saint Paul, Minn.) so that a consistent gage section of mm was obtained.
A “Modified ASTM D” test fixture (Wyoming Test Fixtures, Inc., Salt Lake City, Utah) was used with bolt torques of N-cm. The detail that can be obtained by such methods includes structure of the polymer backbone, branching, end groups, isomeric detail and fine detail in the structure of copolymers.\ucbr\ue\ucbr\ueThe first three chapters of the book discuss the various chromatographic and mass spectroscopic techniques now available.\ucbr\ue.
ABSTRACTS. The following is a list of the abstracts for papers which will be presented in THE FIFTH INTERNATIONAL SYMPOSIUM ON POLYIMIDES AND OTHER HIGH TEMPERATURE POLYMERS: SYNTHESIS, CHARACTERIZATION AND listing is alphabetical by presenting author.
This list is updated continually to add abstracts as they become available and make. Handbook of Thermoset Plastics, 2nd Ed., Second Edition (Plastics & Elastomers) Sidney W.
Goodman Once occupying a lesser, yet significant, role in the plastics' industry, thermoset plastics technology has increasingly become important to designers and users who work in specialty applications. Content Posted in Link. Winter Inquiry Study: Monitoring Vermont, William Baker.
Link. 1-Precise polymer synthesis and polymer modification: The Preparation of Copolymers Derived from Thiol-ene/Cationic Systems by Using a Coupling Agent., Mark Soucek Edits and Counting: My Wikipedia Adventure, David Simmons.
PDF. Compositions comprise (a) a curable resin sol comprising a colloidal dispersion of substantially spherical, substantially inorganic microparticles (e.g., surface-modified silica) in curable resin (e.g., epoxy resin); and (b) reinforcing fibers (e.g., carbon fibers).
The compositions can be cured to provide fiber-reinforced composites which exhibit improved resin-dominated mechanical properties. Full text of "NASA Technical Reports Server (NTRS) Structural Framework for Flight: NASA's Role in Development of Advanced Composite Materials for.
Full text of "NASA Technical Reports Server (NTRS) High Temperature Polymer Matrix Composites" See other formats.
introduction to synthetic methods in step-growth polymers many instances, the trifunctional or higher functional monomers contain reactive groups that are identical to the difunctional monomers.
For example, pentaerythritol (f = 4) and 1,3,5-benzene tricarboxylic acid (f = 3) and trimellitic anhydride (f = 3) are commonly used in. Zia Rahman, Properties of a Center/Surround Retinex: Part 1.
Signal Processing Design, NASA CR, Augustpp. 15,A copy of this document with color figures may be ordered from the NASA Center for AeroSpace Information (CASI). Adhesive Properties of Cured Phenylethynyl Containing Imides. NASA Technical Reports Server (NTRS) Jensen, Brian J.; Chang, Alice C.
Considerable attention has been directed towards acetylene terminated oligomers over the last 20 years' and recent work has focused on phenylethynyl terminated imide (PETI) oligomers.
SEM photomicrographs revealed that the origin of this low strength was poor adhesion in the interfaces between the adhesive and face sheet composite due to poor wetting associated with the high initial viscosity of the XMTA/PM15 adhesive.
Modified Phenylethynyl Containing Imides for Secondary Bonding: Non-Autoclave, Low Temperature. Thermosetting plastics are a distinct category of plastics whose high performance, durability and reliability at high temperatures makes them suitable for specialty applications ranging from automotive and aerospace through to electronic packaging and consumer products (your melamine kitchen worktop is a thermoset resin!).
Recent developments in thermoset plastics technology and processes has. RTM imide resin based on 2,3,3 ’,4 ’-biphenyl dianhydride (a-BPDA), 3,4 ’-oxydianinline (3,4 ’-ODA) with the 4-phenylethynylphthalic (PEPA) endcap has been shown to exhibit a high cured T g ( °C) and low melt viscosity ( poise) at °C with a pot-life of h.
Previously, RTM resin has been successfully fabricated into composites reinforced with T carbon. Phenolic coating resins have good wetting and adhesive properties, and very good chemical and abrasion resistance.
The baking step in coating production involves a crosslinking process. Crosslinking makes the coating insoluble, strong, and resistant to exposure to chemicals, solvents (except alkalies), and. Source: Handbook of Plastics Technologies CHAPTER 2 THERMOPLASTICS Anne-Marie Baker, Joey L.
Mead University of Massachusetts Lowell, Massachusetts INTRODUCTION Plastic materials encompass a broad range of materials. The effect of structure on the resulting properties was discussed more fully in Chap. Scribd es el sitio social de lectura y editoriales más grande del mundo.
The aim of the book is to help the reader to make the right decision and take the correct action - avoiding the pitfalls the authors' experience has new edition has been updated throughout to reflect current practice in manufacturing and processing, featuring:Case Studies to demonstrate how particular properties make different.
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