Results 1 to 10 of about 50 (50)
pH‐Sensitive methacrylic acid–methyl methacrylate copolymer Eudragit L100 and dimethylaminoethyl methacrylate, butyl methacrylate, and methyl methacrylate tri‐copolymer Eudragit E100 [PDF]
Polymers for Advanced Technologies, 2019 Poly (methyl methacrylate) derivatives such as Eudragit are largely used for drug encapsulation and in controlled oral drug delivery. With special focusing on those applications, solubilization and precipitation conditions of two pH‐sensitive Eudragit polymers, namely, L100 and E100, were investigated via systematic studies.
Sester, Coraline +5 more
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Developmental toxicities of methacrylic acid, ethyl methacrylate, n- butyl methacrylate, and allyl methacrylate in rats following inhalation exposure [PDF]
Toxicological Sciences, 1999 The developmental toxicities of 4 methacrylates were studied in Sprague-Dawley rats after inhalation exposure for 6 h/day, during days 6 to 20 of gestation. The exposure concentrations were, for methacrylic acid, 0, 50, 100, 200, or 300 ppm; for ethyl methacrylate, 0, 600, 1200, 1800, or 2400 ppm; for n-butyl methacrylate, 0, 100, 300, 600, or 1200 ppm;
A Peltier +4 more
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Terpolymerization kinetics of methyl methacrylate or styrene/dodecyl methacrylate/octadecyl methacrylate systems [PDF]
Polymer International, 2006 AbstractThis study describes low‐conversion terpolymerization kinetic investigations of methyl methacrylate/dodecyl methacrylate/octadecyl methacrylate (MMA/DDMA/ODMA) and styrene/dodecyl methacrylate/octadecyl methacrylate (ST/DDMA/ODMA) systems. Terpolymerizations were performed isothermally (70–105 °C), in 1 mol dm−3 xylene solutions, using 0.01 mol
Zvonimir Janović +3 more
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Differential orientation and conformation of surface-bound keratinocyte growth factor on (hydroxyethyl)methacrylate, (hydroxyethyl)methacrylate/methyl methacrylate, and (hydroxyethyl)methacrylate/methacrylic acid hydrogel copolymers [PDF]
Biointerphases, 2018 The development of hydrogels for protein delivery requires protein–hydrogel interactions that cause minimal disruption of the protein’s biological activity. Biological activity can be influenced by factors such as orientational accessibility for receptor binding and conformational changes, and these factors can be influenced by the hydrogel surface ...
Wesley L. Hicks +3 more
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4-Nitrophenyl methacrylate [PDF]
Acta Crystallographica Section E Structure Reports Online, 2008 The title compound, C10H9NO4, was obtained serendipitously during the preparation of benzyl cyclohexylcarbamate. The molecule consists of two approximately planar parts, the nitrophenyl ring and the rest of the non-H atoms, with a dihedral angle of 55.05 (6)° between the two segments. The crystal structure is stabilized by weak C—H...O interactions and
Yun-Hua Xu, Fanqi Qu
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Some of the next articles are maybe not open access.
European Polymer Journal, 1978
Abstract Copolymerizations of methyl methacrylate with the Li, Na and K salts of methacrylic acid have been studied in methanol solution at 60°. Reactivity ratios have been calculated by the methods due to Mayo and Lewis, Fineman and Ross and Peckham. The rate of copolymerization decreases as the size of the metal cation increases, in contrast to the
I.C. McNeill, A. Hamoudi
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Abstract Copolymerizations of methyl methacrylate with the Li, Na and K salts of methacrylic acid have been studied in methanol solution at 60°. Reactivity ratios have been calculated by the methods due to Mayo and Lewis, Fineman and Ross and Peckham. The rate of copolymerization decreases as the size of the metal cation increases, in contrast to the
I.C. McNeill, A. Hamoudi
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Methods for the Synthesis of Methacrylic Acid and Methacrylates
Kataliz v promyshlennosti, 2020The review provides an analysis of the literature on the existing processes for obtaining an important organic product – methacrylic acid and its ester – methyl methacrylate. The main methods of their industrial production are the synthesis from acetone and hydrocyanic acid (the acetone cyanohydrin method) and catalytic syntheses from petrochemical raw
Z. P. Pai, L. L. Gogin, E. G. Zhizhina
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Catalysis for the synthesis of methacrylic acid and methyl methacrylate
Chemical Society Reviews, 2018Methyl methacrylate (MMA) is a specialty monomer for poly methyl methacrylate (PMMA) and the increasing demand for this monomer has motivated industry to develop clean technologies based on renewable resources.
Mohammad Jaber Darabi Mahboub +4 more
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The copolymerization of phenyl methacrylate with methacrylic acid
Polymer Science U.S.S.R., 1970Copolymers of methacrylic acid with its esters are used as models in the hydrolysis s tudy of the respective polymethacrylates [1]. The knowledge of copolymerization constants rl and r2 permits the calculation of the acid and ester unit distribution in the copolymer chains. In this event the kinetic s tudy of the hydrolysis of copolymer samples enables
M.V. Shishkina +5 more
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The copolymerisation of tetrahydrofurfuryl methacrylate and methyl methacrylate
Polymer Gels and Networks, 1996Abstract The bulk copolymerisations of tetrahydrofurfuryl methacrylate, THFMA, and methyl methacrylate, MMA, were carried to low conversion at 60 °C, using benzoyl peroxide, BPO, as the initiator. The compositions of the copolymers were determined using 13C NMR spectroscopy.
Ghi, PY +4 more
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