Results 21 to 30 of about 154 (134)

Preparation, Identification, and Evaluation of the Thermal Properties of Novolac Resins Modified with TiO2, MgO, and V2O5 Oxides [PDF]

Mechanics of Advanced Composite Structures
It is essential to improve thermal insulation. In this study, titanium dioxide (TiO2), magnesium oxide (MgO), and vanadium pentoxide (V2O5) were used as additives to modify phenolic novolac resin by the solution mixing method.
Mohsen Rezaei Qazviniha, Farideh Piri
doaj   +1 more source

Preparation of a Novel Phosphorus-Nitrogen Containing Novolac Curing Agent for Epoxy Resin and flame-retardancy of its cured epoxy resin

Designed Monomers and Polymers, 2019
In this study, DICY (dicyandiamide)-containing novolac (NN) was first prepared, and then DOPO (9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) was introduced to react with the unsaturated bonds from DICY to obtain a novel phosphorus-nitrogen ...
Hui Qiao, Yun Liang, Guilong Xu, Yanchong Zhang, Yi Wang, Jian Hu   +5 more
doaj   +1 more source

Propargylated Novolac Resins for Solvent-Free Technology for High-Performance Composites

Eurasian Chemico-Technological Journal, 2018
Propargyl substituted novolac phenolic resin diluted with unsaturated bisphenol-A ethers was used for glass fiber solvent-free impregnation for the formation of high-performance composites.
D. Kalugin, S. Nechausov, A. Galiguzov, A. Malakho, V. Lepin, L. Oktiabrskaia, S. Minchuk   +6 more
doaj   +1 more source

Carbon Fabric Reinforced Addition-Cure Phenolic Resins Based on Propargyl and Allyl Ether Functional Novolac Produced by Vacuum Infusion

Eurasian Chemico-Technological Journal, 2020
Composites consisting of propargyl- and allyl/propargyl- modified novolac resins and carbon fabric were obtained by the vacuum infusion molding process. It was established that the presence of potassium cations remaining after the synthesis increase the ...
S. Nechausov, B. Bulgakov, D. Kalugin, A. Babkin, A. Kepman, A. Malakho, V. Avdeev   +6 more
doaj   +1 more source

Thermosetting resin compositions based on novolac and modified novolac

Advances in Polymer Technology, 2011
AbstractNovel formaldehyde novolac resins at various molar ratios of monomers (4,4′‐methylenedianiline/p‐nonylphenol/p‐formaldehyde) were synthesized in the presence of an acid catalyst. The obtained resins were characterized by using elemental analysis, FT IR, and 1H NMR spectroscopic methods.
openaire   +1 more source

A new strategy for the synthesis of modified novolac resin and its polymer/clay nanocomposite

eXPRESS Polymer Letters, 2019
A novel epoxy nanocomposite composed of epoxidized novolac (ENR), epoxidized polystyrene (EPSt), and nanoclay was fabricated and characterized successfully.
R. Mohammad-Rezaei, B. Massoumi, M. Eskandani, M. Abbasian, M. Jaymand   +4 more
doaj   +1 more source

Recent advances in polymeric chemically amplified positive resists: Materials and design strategies

Smart Molecules, EarlyView.
This review summarizes recent advances in the molecular design of positive chemically amplified resists, focusing on photoacid generators and polymer architectures. Key strategies for enhancing sensitivity—including self‐amplification effects, copolymerization of sensitive monomers, controlled polymerization, and photosensitized chemically amplified ...
Litao Zhou, Haoyuan Li, Jianhua Zhang, Hanshen Xin   +3 more
wiley   +1 more source

Accelerating Sustainable Epoxy Resin Development Through Bayesian Optimization and Inverse Design

Journal of Applied Polymer Science, Volume 143, Issue 37, October 5, 2026.
Development of a machine learning framework for the optimization of the Tg of partially bio‐based epoxy resin formulations in a 13‐component design space using Bayesian optimization, active learning, random design, and inverse design. The results show that the BO effectively navigates high‐dimensional formulation spaces, and the final ML model could ...
Natalie Wunder, Rodrigo Q. Albuquerque, Florian Max, Holger Ruckdäschel   +3 more
wiley   +1 more source

Synergistic Effects of Phenolic Resin and Polymer Architecture on Crosslink Density and Damping in Poly(Epichlorohydrin‐Co‐Ethylene Oxide‐Co‐Allyl Glycidyl Ether) (GECO) Elastomers

Journal of Polymer Science, Volume 64, Issue 16, Page 3471-3491, 15 August 2026.
Phenolic resin reduces crosslink density and alters the viscoelastic response of GECO elastomers. The magnitude of these changes depends strongly on polymer architecture. Damping performance is governed by the combined effects of network density and molecular structure, not resin content alone, providing a framework for designing advanced vibration ...
Yalçın Yalaki, Murat Şen
wiley   +1 more source

Curing kinetics, mechanism and chemorheological behavior of methanol etherified amino/novolac epoxy systems

eXPRESS Polymer Letters, 2014
The curing kinetics and mechanism of epoxy novolac resin (DEN) and modified epoxy novolac resin (MDEN) with methanol etherified amino resin were studied by means of differential scanning calorimetry (DSC), Fourier transforminfrared (FT-IR) spectroscopy ...
S. F. Zhao, G. P. Zhang, R. Sun, C. P. Wong   +3 more
doaj   +1 more source