Synthesis of crosslinkable latices with poly(vinyl acetate-co-VeoVa10) cores and poly(glycidyl methacrylate) shells and online-FTIR analysis of the amine induced curing process

2012 ◽  
Vol 126 (S2) ◽  
pp. E172-E181 ◽  
Author(s):  
Jia Lu ◽  
Allan J. Easteal ◽  
Neil Edmond
Keyword(s):  
Vinyl Acetate ◽  
Glycidyl Methacrylate ◽  
Curing Process ◽  
Ftir Analysis ◽  
Online Ftir

Wood-Polymer Composite Fabricated by Polymerization of Monomers within Wood Porous Structure

2012 ◽  
Vol 549 ◽  
pp. 699-702
Author(s):  
Xiao Ying Dong ◽  
Ding Wang Gong ◽  
Zhen Bo Liu ◽  
Yi Xing Liu
Keyword(s):  
Porous Structure ◽  
Polymer Composite ◽  
Glycidyl Methacrylate ◽  
Solid Polymer ◽  
Ftir Analysis ◽  
Functional Monomers ◽  
Wood Polymer ◽  
Composite Wood ◽  
Wood Polymer Composite

A novel composite, wood-polymer composite, was fabricated by polymerization of functional monomers within wood porous structure. The wood was a fast-growing plant wood, Micheliamacclurel wood, which was rarely reported in previous studies, and two functional monomers, glycidyl methacrylate and ethylene glycol dimethacrylate, were novelly employed. The monomers, added with a few Azo-bis-isobutryonitrile as initiator, and maleic anhydride as catalyst, were first impregnated into wood pores under vacuum/pressure conditions, and then in-situ polymerized into polymers through a catalyst-thermal treatment. After the processes, wood-polymer composite was resulted. SEM and FTIR analysis for the composite indicated that the monomers polymerized into solid polymer, which fully filled up wood pores, and the resulted polymer grafted onto wood matrix, resulting in good interface combination between polymer and wood matrix. Such composite with satisfactory interface can be potentially applied as structural material in construction field.

Characterization and Properties of UV-Cured Epoxy Acrylate/POSS Nanocomposites

2013 ◽  
Vol 652-654 ◽  
pp. 331-334
Author(s):  
Ying Wang ◽  
Xiang Xin Xue ◽  
Feng Guo Liu
Keyword(s):  
Phase Separation ◽  
Impact Resistance ◽  
Uv Curing ◽  
Xrd Analysis ◽  
Epoxy Acrylate ◽  
Curing Process ◽  
Ftir Analysis ◽  
Uv Curing Process ◽  
Oligomeric Silsesquioxane ◽  
The Impact

In this study, polyhedral oligomeric silsesquioxane (POSS) were blenged with epoxy acrylate (EA) and photoinitiator to prepare nanocomposites through UV-curing process. The vinyl-POSS nanoparticles were added to EA by physically blending at loadings between 0% and 15wt%. Through the FTIR analysis, we found that the POSS nanocomposites didn’t affect the extent of UV curing reactions; the curing reactions were performed to be completed in all POSS containing composites. The XRD analysis convinced the existing of phase separation between EA matrix and vinyl-POSS monomer. The impact resistance and coating adhesion were all enhanced by POSS nanocomposites at low content.

scholarly journals UV Irradiation Chlorine Dioxide Photocatalytic Oxidation of Simulated Fuchsine Wastewater by UV-Vis and Online FTIR Spectrophotometric Method

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Laishun Shi ◽  
Xiaomei Wang ◽  
Na Li ◽  
Chunlei Huai ◽  
Jie Liu
Keyword(s):  
Uv Irradiation ◽  
Chlorine Dioxide ◽  
Photocatalytic Oxidation ◽  
Oxidation Process ◽  
Degradation Process ◽  
Chemical Oxidation ◽  
Ftir Analysis ◽  
Analysis Technique ◽  
Degradation Reaction ◽  
Online Ftir

The photocatalyst TiO2/SiO2 was prepared and used for chlorine dioxide photocatalytic oxidation of simulated fuchsine wastewater under UV irradiation. The removal efficiency of fuchsine treated by photocatalytic oxidation process is higher than that of chemical oxidation process. By using UV-Vis and online FTIR analysis technique, the intermediates during the degradation process were obtained. The benzene ring in fuchsine was degraded into quinone and carboxylic acid and finally changed into carbon dioxide and water during the photocatalytic oxidation. The degradation reaction mechanism of fuchsine by UV irradiation chlorine dioxide photocatalytic oxidation was proposed based upon the experiment evidence.

scholarly journals A novel betaine type asphalt emulsifier synthesized and investigated by online FTIR spectrophotometric method

2015 ◽  
Vol 21 (1-1) ◽  
pp. 113-121 ◽  
Author(s):  
Laishun Shi ◽  
Meijie Sun ◽  
Na Li ◽  
Bochen Zhang
Keyword(s):  
Experimental Data ◽  
Lauric Acid ◽  
Chemical Structure ◽  
Ftir Analysis ◽  
Mass Ratio ◽  
Optimum Conditions ◽  
Reaction Conditions ◽  
Optimum Reaction ◽  
Ftir Technique ◽  
Online Ftir

A novel betaine type asphalt emulsifier 3-(N,N,N-dimethyl acetoxy ammonium chloride)-2-hydroxypropyl laurate was synthesized after three steps by the reaction of lauric acid, epichlorohydrin, dimethylamine and sodium chloroacetate. The optimum reaction conditions were obtained for the synthesis of the first step of 3-chloro-2-hydroxypropyl laurate. The esterification yield reaches 97.1% at the optimum conditions of reaction temperature 80?C, reaction time 6 h, feedstock mole ratio of epichlorohydrin to lauric acid 1.5, mass ratio of catalyst to lauric acid 2%. The chemical structure of the product was characterized by FTIR and 1H NMR. The first synthesis step of 3-chloro-2-hydroxypropyl laurate was monitored by online FTIR technique. The by-product was detected by the online FTIR analysis. Based upon the experimental data, a plausible reaction mechanism was proposed for the reaction. The CMC of the objective product has a lower value of 7.4?10-4 mol/L. The surface tension at CMC is 30.85 mN/m. The emulsifier is a rapid-set asphalt emulsifier.

Synthesis and reactive features of a terpolymer: Poly(N-vinyl-2-pyrrolidone-co-vinyl acetate-co-glycidyl methacrylate)

2012 ◽  
pp. n/a-n/a
Author(s):  
David K. Hood ◽  
David E. Kranbuehl ◽  
A. Jaeton Glover ◽  
Laurence Senak ◽  
Chao Zhu ◽  
...  
Keyword(s):  
Vinyl Acetate ◽  
Glycidyl Methacrylate
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