Results 251 to 260 of about 1,482,034 (300)

Development of Bismaleimide/Cyanate Ester Copolymers

2001
Since the beginning of the space age, the goal of materials development in the aerospace industry has been to replace metal alloys with much lighter polymer resins, while maintaining the strength over a wide temperature range characteristic of metals.
K Chuang, BC Sisk, W-P Pan
openaire   +2 more sources

Modification of cyanate ester resin by soluble polyarylates

Polymer International, 2003
AbstractSoluble polyarylates were prepared from the reaction of 2,2‐bis(4‐hydroxyphenyl)propane (bisphenol‐A) and aromatic acid dichlorides (phthaloyl chloride and related diacid dichlorides), and used to improve the brittleness of a cyanate ester resin.
Takao Kunimi, Toshiyuki Oyama, Masao Tomoi, Takao Iijima   +3 more
openaire   +2 more sources

Modification of cyanate ester resin by soluble polyimides

Journal of Applied Polymer Science, 2003
AbstractSoluble polyimides (PIs) were prepared as random or multiblock types with 4,4′‐(hexafluoroisopropylidene) diphthalic anhydride (6FDA) and 3,3′,4,4′‐biphenyltetracarboxylic dianhydride (s‐BPDA) as acid dianhydride components and 4,4′‐bis(m‐aminophenoxy) diphenyl sulfone (m‐BAPS) as a diamine component by a one‐pot process and used to improve the
Masao Tomoi, Tomohiro Kaise, Takao Iijima   +2 more
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Cyanate ester polymerization catalysis by layered-silicates

Polymer, 2004
This work examines the effect of Na montmorillonite (Na MMT) and cation exchanged layered montmorillonite on the polymerization of a cyanate ester monomer (1,1-bis(4-cyanatophenyl)ethane). The cyanate ester polymerization reaction is examined using a traditional catalyst and several montmorillonites.
Douglas R. MacFarlane, Simmi Abrol, Tim J. Wooster, Tim J. Wooster   +3 more
openaire   +2 more sources

High-Performance Cyanate Ester Resins with Interpenetration Networks for 3D Printing.

ACS Applied Materials and Interfaces, 2020
As the 3D printing technology is getting more and more popular and useful, demands for materials for 3D printing have increased significantly. Cyanate ester (CE) resin possesses the characteristics of high heat distortion temperature and high glass ...
Zhaofu Zhou, Yuewei Li, Jie Zhong, Zhen Luo, Cui-Ran Gong, Yang-Qing Zheng, Shuqiang Peng, Li-Ming Yu, Lixin Wu, Ying Xu   +9 more
semanticscholar   +1 more source

The catalytic mechanism of benzoxazine to the polymerization of cyanate ester

Materials Chemistry and Physics, 2014
Abstract Two model compounds, 3-Phenyl-3,4-dihydro-2H-1,3-benzoxazine (PA) and 6,8-dimethyl-3-(2,4,6-trimethyl-phenyl)-3,4-dihydro-2H-1,3-benzoxazine (s-PA), were successfully synthesized and purificated. Compared with PA, s-PA also catalyzed the polymerization of BADCy even though there was no phenolic hydroxyl in its final ring-opened structures ...
Xiaoyong Luo, Xiaodan Li, Ming Liu, Yi Gu, Qichao Ran   +4 more
openaire   +2 more sources

Manufacture and Test of a Prototype Cyanate Ester Coil

IEEE Transactions on Applied Superconductivity, 2010
In order to demonstrate that cyanate ester resin could be successfully used in an industrial environment to produce a fusion magnet, a test coil has been made as part of the MAST-Upgrade programme. Cyanate ester offers a number of advantages over conventional epoxy-based insulation systems - notably increased high temperature strength, greater ...
S R Davis, G M Voss
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Cyanate Ester Resins, Recent Developments

2007
The search for advanced, high performance, high temperature resistant polymers is on the rise in view of the growing demand for polymer matrix composites that are to meet stringent functional requirements for use in the rapidly evolving high-tech area of aerospace.
K. N. Ninan, Dona Mathew, C. P. Reghunadhan Nair   +2 more
openaire   +2 more sources

Nickel-Catalyzed Cyanation of Benzylic and Allylic Pivalate Esters

The Journal of Organic Chemistry, 2018
A nickel-catalyzed cyanation reaction of benzylic and allylic pivalate esters is reported using an air-stable Ni(II) precatalyst and substoichiometric quantities of Zn(CN)2. Alkene additives were found to inhibit catalysis, suggesting that avoiding β-hydride elimination side reactions is essential for productive catalysis.
Nicholas W. M. Michel, Alexandria D. M. Jeanneret, Hyehwang Kim, Sophie A. L. Rousseaux   +3 more
openaire   +3 more sources

Acceleration of cyanate ester trimerization by dicyanamide RTILs

Polymer, 2016
Abstract This work presents dicyanamide-containing ionic liquids as a new initiator system for cyanate ester resins. The cure effect was found in many dicyanamide-containing ionic liquids with diverse cations, and the dicyanamide was found to incorporate directly into the triazine network.
Giuseppe R. Palmese, James Throckmorton
openaire   +2 more sources