Results 331 to 340 of about 695,264 (389)

Titanocene‐Promoted Eliminations on Epoxy Alcohols and Epoxy Esters

European Journal of Organic Chemistry, 2010
AbstractThe reaction of a series of 2,3‐epoxy alcohols and the corresponding formates, acetates, and benzoates promoted by Cp2TiCl has been studied. The different outcome of the reaction of epoxy derivatives has been rationalized in terms of mechanistically biased processes.
Fern?ndez Mateos, Alfonso, Encinas Madrazo, Soledad, Herrero Teij?n, Pablo, Rubio Gonz?lez, Mar?a Rosa   +3 more
openaire   +4 more sources

Embedding in epoxy resins for ultrathin sectioning in electron microscopy.

Stain Technology, 1960
Fixed tissue is dehydrated with tertiary butyl alcohol overnight. The following day it is cleared in toluene, infiltrated and embedded in Araldite resin-hardener-accelerator mixture without dibutyl phthalate, and polymerized at 60° C.
K. C. Richardson, L. Jarett, E. Finke
semanticscholar   +1 more source

Vanillin-Based Epoxy Vitrimer with High Performance and Closed-Loop Recyclability

, 2020
It is of great importance to develop epoxy vitrimers with the combination of high performance and versatile recyclability. Herein, two imine-containing hardeners were synthesized from bio-based vanillin and petroleum-based p-hydroxy benzaldehyde.
H. Memon, H. Liu, M. Rashid, Li Chen, Qiuran Jiang, Liying Zhang, Yizhe Wei, Wanshuang Liu, Y. Qiu   +8 more
semanticscholar   +1 more source

Multiscale Modeling of Epoxies and Epoxy-Based Composites

2020
Epoxies play an important role in determining the performance of epoxy-based composites, coatings, and adhesives. Multiscale modeling methods emerge as a complementary tool to conventional experimental and theoretical approaches and are widely used to study the relationships between processing, structure, and property of polymer materials.
Xiawa Wu, Jaafar A. El-Awady
openaire   +2 more sources

Phosphorus-Free Vanillin-Derived Intrinsically Flame-Retardant Epoxy Thermoset with Extremely Low Heat Release Rate and Smoke Emission

, 2021
Recently, the development of bio-based intrinsically flame-retardant epoxy thermosets has attracted increasing interest for the replacement of petroleum-based epoxy thermosets in fields that demand...
Haoxin Niu, H. Nabipour, Xin Wang, Lei Song, Yuan Hu   +4 more
semanticscholar   +1 more source

Epoxy‐amine networks with varying epoxy polydispersity

Journal of Applied Polymer Science, 2014
ABSTRACTSolid, high molecular weight DGEBA‐based epoxies were blended with high purity liquid DGEBA to create several resins with equivalent epoxy equivalent weights, but with polydispersity indices (PDIs) ranging from 3 to over 10. The resins were cured with a stoichiometric amount of polyetheramine and compared to a nonblended epoxy with PDI of 1.8 ...
Giuseppe R. Palmese, Ian M. Mc Aninch, Ian M. Mc Aninch, John J. La Scala, Joseph L. Lenhart   +4 more
openaire   +2 more sources

Characterization of the aramid: Epoxy and carbon: Epoxy interphases

Polymer Composites, 1985
AbstractThe matrix/reinforcement interphase in aramid fiber/epoxy and carbon fiber/epoxy composites were modeled by coating an internal reflection spectroscopy (IRS) element with a thin layer of an aramid or of carbonized poly(acrylonitrile) (PAN).
John H. Daly, A. Garton
openaire   +2 more sources

Reuse of cured epoxy as a reinforcement in an epoxy composite

Polymer Engineering & Science, 2012
AbstractThis article discusses the reuse of a thermoset‐based epoxy polymer. In this method, cured epoxy polymer is ground to powder of particle size ranging from 1 to 30 μm. The ground epoxy is then filled in an epoxy polymer to form an epoxy–epoxy composite system using both room and high temperature processing.
T. P. Mohan, Krishnan Kanny
openaire   +2 more sources

Superior electromagnetic interference shielding 3D graphene nanoplatelets/reduced graphene oxide foam/epoxy nanocomposites with high thermal conductivity

Journal of Materials Chemistry C, 2019
A 3D graphene nanoplatelets/reduced graphene oxide foam/epoxy nanocomposite exhibits superior electromagnetic interference shielding and excellent thermal conductivity.
Chaobo Liang, Huaili Qiu, Yang-Mei Han, H. Gu, Ping Song, Lei Wang, Jie Kong, D. Cao, Junwei Gu   +8 more
semanticscholar   +1 more source

Sustainable Epoxy Vitrimers from Epoxidized Soybean Oil and Vanillin

, 2020
Epoxidized soybean oil (ESO) derived epoxy thermosets are usually limited by their poor mechanical properties and non-reprocessability.
Xiao-Li Zhao, Yu-Yao Liu, Yunxuan Weng, Yi-dong Li, J. Zeng   +4 more
semanticscholar   +1 more source