Morphologies and Mechanical Properties of Epoxy Resin/Polymethyl Methacrylate Interpenetrating Network Modified with Kaolin

2011 ◽  
Vol 337 ◽  
pp. 184-187
Author(s):  
Gui Xiang Hou ◽  
Xiao Ai Chen ◽  
Xiao Ming Sang
Keyword(s):  
Epoxy Resin ◽  
Polymethyl Methacrylate ◽  
Ring Opening ◽  
Interpenetrating Network ◽  
Scanning Electronic Microscopy ◽  
Epoxy Ring ◽  
Ring Opening Reaction ◽  
Epoxy Ring Opening ◽  
Lower Tensile Strength

Epoxy resin/polymethyl methacrylate(EP/PMMA,70/30) interpenetrating network composites containing various contents of dimethyl sulfoxide modified kaoline (EP/PMMA /K-DMSO) composites were prepared by a sequential polymeric technique and an in situ intercalation method. FTIR results showed that the epoxy ring opening reaction occurs, the formation of IPN structure of PMMA and EP has been created. The structure of composite material was characterized by scanning electronic microscopy (SEM). The result indicated that higher impact strength and lower tensile strength with increasing concentration of K-DMSO.

Synthesis and chromatographic evaluation of phenyl/tetrazole bonded stationary phase based on thiol-epoxy ring opening reaction

2018 ◽  
Vol 41 (4) ◽  
pp. 856-867 ◽  
Author(s):  
Gaowa Jin ◽  
Yanming Liu ◽  
Fan Yang ◽  
Dongping Yu ◽  
Jingyu Yan ◽  
...  
Keyword(s):  
Stationary Phase ◽  
Ring Opening ◽  
Epoxy Ring ◽  
Ring Opening Reaction ◽  
Epoxy Ring Opening

scholarly journals Hydrogenation of High Molecular Weight Bisphenol A Type Epoxy Resin BE503 in a Functional and Greener Solvent Mixture Using a Rh Catalyst Supported on Carbon Black

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2513 ◽  
Author(s):  
Bo-Xin Lai ◽  
Saurav Bhattacharjee ◽  
Yi-Hao Huang ◽  
An-Bang Duh ◽  
Ping-Chieh Wang ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Bisphenol A ◽  
Epoxy Resin ◽  
Ring Opening ◽  
Solvent Mixture ◽  
Aromatic Rings ◽  
Epoxy Ring ◽  
Major Pathway ◽  
Epoxy Ring Opening ◽  
Carbon Based

A functional greener solvent mixture containing water, isopropyl alcohol (IPA) and ethyl acetate with the ratio 10:20:70 (wt%) was found to accelerate hydrogenation of bisphenol A type epoxy resin BE503 with a molecular weight of 1500 through an on-water mechanism, and led to an increased H2 availability, due to high solubility of H2 in IPA. Different carbon-based supports were tested and VulcanXC72 was found as the best support among the tested carbon-based ones as it possessed the highest amount of electron deficient promoter, RhOx. The catalyst, Rh5/VulcanXC72-polyol, synthesized by the microwave assisted polyol method, yielded a 100% hydrogenation of aromatic rings with an epoxy ring opening below 20.0% at 50 °C and a H2 pressure of 1000 psi in 2.25 h. Intrinsic activation energies for the hydrogenation of aromatic rings and epoxy ring opening were experimentally estimated and a mechanism for the hydrogenation of BE503 was proposed, wherein the hydrogenation of aromatic rings and epoxy ring opening in BE503 proceeded simultaneously in parallel and in-series with parallel being the major pathway.

scholarly journals Polyols Prepared from Ring-Opening Epoxidized Soybean Oil by a Castor Oil-Based Fatty Diol

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Jing Zhang ◽  
Ji Jun Tang ◽  
Jiao Xia Zhang
Keyword(s):  
Soybean Oil ◽  
Castor Oil ◽  
Ring Opening ◽  
Epoxidized Soybean Oil ◽  
Epoxy Ring ◽  
Molecular Weights ◽  
Molar Ratios ◽  
Epoxy Ring Opening ◽  
Ft Ir

Several biorenewable vegetable oil-based polyols with different molecular weights and various hydroxyl functionalities were successfully prepared by ring-opening epoxidized soybean oil with a castor oil-based fatty diol. It was found that several factors, including reaction time, reaction temperature, and molar ratios between epoxidized soybean oil and castor oil diol, affect structures and rheology behaviors of the final polyols. Proton NMR, FT-IR, GPC, and rheometry results revealed that the hydroxyl functionalities, molecular weight, and viscosity of the polyols could be tailored by controlling the above-mentioned factors. Besides, the role of solvents in the epoxy ring-opening process was investigated as well.

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