scholarly journals Influence of composition and powder/liquid ratio on setting characteristics and mechanical properties of autopolymerized hard direct denture reline resins based on methyl methacrylate and ethylene glycol dimethacrylate

2014 ◽  
Vol 33 (4) ◽  
pp. 522-529 ◽  
Author(s):  
Yoshikazu OKUYAMA ◽  
Takanobu SHIRAISHI ◽  
Kazuhiro YOSHIDA ◽  
Tadafumi KUROGI ◽  
Ikuya WATANABE ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ethylene Glycol ◽  
Methyl Methacrylate ◽  
Ethylene Glycol Dimethacrylate ◽  
Glycol Dimethacrylate ◽  
Liquid Ratio

Characterization of Pyrazoline Organic Nanoparticles Encapsulated with Poly(Methyl Methacrylate-co-Ethylene Glycol Dimethacrylate) for Color Electronic Paper

2006 ◽  
Vol 965 ◽  
Author(s):  
Hyo Sim Kang ◽  
Sun Wha Oh ◽  
Young Soo Kang
Keyword(s):  
Ethylene Glycol ◽  
Methyl Methacrylate ◽  
Electrophoretic Mobility ◽  
Ethylene Glycol Dimethacrylate ◽  
Aqueous Alcohol ◽  
Glycol Dimethacrylate ◽  
Organic Nanoparticles ◽  
Poly Methyl Methacrylate ◽  
Electronic Paper ◽  
Electronic Ink

ABSTRACT1-Phenyl-3-naphthyl-5-((dimethylamino)phenyl)-2-pyrazoline with different diameters of 40 - 190 nm were prepared by the reprecipitation method and polymerized with poly(methyl methacrylate-co-ethylene glycol dimethacrylate) using cationic surfactants for full color electronic paper, which is expected to substitute for the future display. The electronic ink particles of pyrazoline organic nanoparticles polymerized by poly(methylmethacrylate-co-ethylene glycol dimethacrylate) were prepared and monodispersed successfully in aqueous alcohol medium. The size of mono-dispersed electronic ink particles is from 160 to 550 nm. The ink particle size was found to decrease with increasing concentration of the surfactant. The effect of surfactant was significant. The appropriate additions of surfactants result in an increase in electrophoretic mobility. The electrophoretic mobility of the resulting electronic inks was −7.5 to −3.6 × 10−5 cm2/ V·s in the presence of surfactants.

Proton Nuclear Magnetic Resonance Spectroscopic Detection and Determination of Ethylene Glycol Dimethacrylate as a Contaminant of Methyl Methacrylate Raw Material

1995 ◽  
Vol 78 (4) ◽  
pp. 954-958
Author(s):  
George M Hanna ◽  
Cesar A Lau-Cam
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Ethylene Glycol ◽  
Methyl Methacrylate ◽  
Spectroscopic Method ◽  
Ethylene Glycol Dimethacrylate ◽  
Raw Material ◽  
Proton Nuclear Magnetic Resonance ◽  
Glycol Dimethacrylate ◽  
Nuclear Magnetic

Abstract A simple, specific, and accurate proton nuclear magnetic resonance (1H NMR) spectroscopic method is presented for detection and assay of ethylene glycol dimethacrylate dimer as a contaminant of methyl methacrylate monomer. In addition to minimizing exposure of the analyst to the irritant and toxic methacrylic acid esters, the proposed method requires no sample preparation. Quantitations are based on integrals for signals of methylene protons of ethylene glycol dimethacrylate at 4.37 ppm and methyl protons of methyl methacrylate at 3.70 ppm. Analysis of 10 synthetic mixtures of the monomer with 1–11% of dimer yielded a dimer recovery of 100.5 ± 2.05% (mean ± standard deviation). Correspondence (correlation coefficient, r=0.9999) between the amount of dimer added and the amount found was excellent. The proposed method measures as little as 1% of dimer.

scholarly journals Stereocomplexation of Poly(lactic acid) and Chemical Crosslinking of Ethylene Glycol Dimethacrylate (EGDMA) Double-Crosslinked Temperature/pH Dual Responsive Hydrogels

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2204
Author(s):  
Zhidan Wang ◽  
Jie Wu ◽  
Xiaoyu Shi ◽  
Fei Song ◽  
Wenli Gao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ethylene Glycol ◽  
Crosslinking Agent ◽  
Ethylene Glycol Dimethacrylate ◽  
Poly Lactic Acid ◽  
Chemical Crosslinking ◽  
Glycol Dimethacrylate ◽  
Dual Responsive ◽  
Responsive Hydrogels ◽  
Physical Crosslinking

Physical crosslinking and chemical crosslinking were used to further improve the mechanical properties and stability of the gel. A temperature/pH dual sensitive and double-crosslinked gel was prepared by the stereo-complex of HEMA-PLLA20 and HEMA-PDLA20 as a physical crosslinking agent, ethylene glycol dimethacrylate (EGDMA) as a chemical crosslinking agent, and azodiisobutyronitrile (AIBN) as an initiator for free radical polymerization. This paper focused on the performance comparison of chemical crosslinked gel, a physical crosslinked gel, and a dual crosslinked gel. The water absorption, temperature, and pH sensitivity of the three hydrogels were studied by a scanning electron microscope (SEM) and swelling performance research. We used a thermal analysis system (TGA) and dynamic viscoelastic spectrometer to study thermal properties and mechanical properties of these gels. Lastly, the in vitro drug release behavior of double-crosslinked hydrogel loaded with doxorubicin under different conditions was studied. The results show that the double-crosslinked and temperature/pH dual responsive hydrogels has great mechanical properties and good stability.

Crosslinked methyl methacrylate/ethylene glycol dimethacrylate polymer compounds with a macroazoinitiator

2010 ◽  
Vol 116 (1) ◽  
pp. 382-393 ◽  
Author(s):  
Hamid Javaherian Naghash ◽  
Ahmad Reza Massah ◽  
Roozbeh Javad Kalbasi ◽  
Masoud Arman
Keyword(s):  
Ethylene Glycol ◽  
Methyl Methacrylate ◽  
Ethylene Glycol Dimethacrylate ◽  
Glycol Dimethacrylate

Nonidealities exhibited by crosslinking copolymerization of methyl methacrylate and ethylene glycol dimethacrylate

1992 ◽  
Vol 25 (18) ◽  
pp. 4490-4500 ◽  
Author(s):  
Neil A. Dotson ◽  
Tim Diekmann ◽  
Christopher W. Macosko ◽  
Matthew Tirrell
Keyword(s):  
Ethylene Glycol ◽  
Methyl Methacrylate ◽  
Ethylene Glycol Dimethacrylate ◽  
Glycol Dimethacrylate

Free-radical cross-linking copolymerization of methyl methacrylate and ethylene glycol dimethacrylate in the presence of trimethoxyvinylsilane

2008 ◽  
Vol 69 (4) ◽  
pp. 992-999 ◽  
Author(s):  
Hamid Javaherian Naghash ◽  
Sanaz Abbasi Dineh Kabudi ◽  
Ahmad Reza Momeni ◽  
Ahmad Reza Massah ◽  
Hamid Aliyan
Keyword(s):  
Free Radical ◽  
Ethylene Glycol ◽  
Methyl Methacrylate ◽  
Ethylene Glycol Dimethacrylate ◽  
Cross Linking ◽  
Glycol Dimethacrylate

Unexpected Effects of Seed Polymer on the Porous Structures of Poly(methyl methacrylate-ethylene glycol dimethacrylate) Particles

1992 ◽  
Vol 21 (7) ◽  
pp. 1145-1148 ◽  
Author(s):  
Ken Hosoya ◽  
Yutaka Kishii ◽  
Nobuo Tanaka ◽  
Kazuhiro Kimata ◽  
Satoshi Maruya ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Methyl Methacrylate ◽  
Ethylene Glycol Dimethacrylate ◽  
Porous Structures ◽  
Glycol Dimethacrylate ◽  
Poly Methyl Methacrylate
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