Category: 1985-51-9

On January 31, 1978, Okubo, H.; Yoshii, F.; Honda, S.; Kaetsu, I. published an article.Application of 1985-51-9 The title of the article was Casting of organic glass by radiation-induced polymerization of glass-forming monomers at low temperatures. IV. Casting and polymer properties of monomeric systems including polyfunctional monomers. And the article contained the following:

The addition of polyfunctional monomers such as tetraethylene glycol diacrylate to internally-plasticized compositions, i.e., 35:35:30 volume% Bu acrylate-Me methacrylate(I)-glycidyl methacrylate, 60:31:8.7:4.7 volume% I-hexanediol monoacrylate-hexanediol diacrylate(II)-hexanediol(III), and 35:30:26.6:17.9:4.7 volume % hydroxyethyl methacrylate-I-hexanediol monomethacrylate-II-III mixtures, improved the glass-forming properties of the composition in radiation-induced casting polymerization and the heat resisistance of the organic glasses. The phys. properties of the best products were tabulated and discussed. The experimental process involved the reaction of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)(cas: 1985-51-9).Application of 1985-51-9

The Article related to casting polymerization methacrylate, irradiation polymerization organic glass, Synthetic High Polymers: Processing Of Monomers and Reagents For Their Preparation and other aspects.Application of 1985-51-9

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On February 1, 2012, Zhang, Hui Min; Kawabata, Kazuya; Miyauchi, Hideki; Shimo, Tetsuro published an article.Recommanded Product: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate) The title of the article was One-pot synthesis of macrocyclic di- and tetralactones using [2 + 2] photocycloaddition reactions of di-2-pyrones with α,ω-diolefins. And the article contained the following:

Sensitized photocycloaddition reactions of 6,6′-dimethyl-4,4′-[1,4-bis(methylenoxy)phenylene]-di-pyrone (I) with poly(ethyleneglycol)divinyl ethers II [n = 2, 3] or 2,2′-dimethyltrimethylene dimethacrylate (III), together with the reactions of 6,6′-dimethyl-4,4′-polymethylenedioxy-2-pyrones (6a, b) with 4 were described. The reactions of I with II gave crown ether type macrocyclic compounds possessing 19- and 22-membered rings across the C3-C4 and C3′-C4′ double bonds in 1, resp. Similar reactions of I with III and IV [X = (CH2)n, n= 5, 6] with III afforded different types of macrocycles having 19- to 21-membered rings across the C5-C6 and C5′-C6′ double bonds in 2-pyrone ring. The stereochem. features of macrocycles V and VI were determined by X-ray crystal anal. The reaction mechanism was inferred by MO methods. The experimental process involved the reaction of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)(cas: 1985-51-9).Recommanded Product: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)

The Article related to macrocyclic dilactone tetralactone preparation mol modeling, photocycloaddition dipyrone diolefin, Heterocyclic Compounds (More Than One Hetero Atom): Eight- and Higher-Membered Rings and other aspects.Recommanded Product: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On March 15, 2011, Jang, Yoon-Seok; Kim, Sung-Hyun; Yoo, Ki-Pung; Byun, Hun-Soo published an article.Related Products of 1985-51-9 The title of the article was Phase behavior measurement for the binary mixture of CO2 + neopentyl glycol diacrylate and CO2 + neopentyl glycol dimethacrylate systems at high pressure. And the article contained the following:

In this work, the solubility curves for the CO2 + neopentyl glycol diacrylate (NPGDA) and CO2 + neopentyl glycol dimethacrylate (NPGDMA) systems are measured in static method at five temperatures of (313.2, 333.2, 353.2, 373.2 and 393.2) K and pressures up to 25.28 MPa. Both CO2 + di(meth)acrylate systems have continuous critical mixture (locus) curves that exhibit maximum in pressure-temperature space between the critical temperatures of CO2 and neopentyl glycol di(meth)acrylate. The solubility of CO2 in the CO2 + neopentyl glycol di(meth)acrylate mixture decreases as the temperature increases at a constant pressure. The CO2 + NPGDA and CO2 + NPGDMA systems exhibit type-I phase behavior. The exptl. results for the CO2 + NPGDA and CO2 + NPGDMA systems are correlated with Peng-Robinson equation of state using a mixing rule including two adjustable parameters. The critical properties of NPGDA and NPGDMA are predicted with Joback-Lyderson and Lee-Kesler method. The experimental process involved the reaction of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)(cas: 1985-51-9).Related Products of 1985-51-9

The Article related to carbon dioxide npgda npgdma binary mixture phase transition, Phase Equilibriums, Chemical Equilibriums, and Solutions: Phase Equilibriums, Solubility and other aspects.Related Products of 1985-51-9

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Sato, Takeru; Sasaki, Muneo; Ikeda, Yoshiyuki; Kimoto, Masaki published an article in 2013, the title of the article was Preparation and estimation of super water-repellent film coated by silica and acrylic-silicon containing active methylene group.Formula: C13H20O4 And the article contains the following content:

In acrylic silicone (M-CAS) solution containing active methylene group, silica micro particles were synthesized by addition of tetraethoxysilane. When this composite film coated on a glass substrate, the water contact angle showed 120°. Furthermore, the film which the hexamethyldisilazane as silane coupling agent was added to together, showed the contact angle of 155°. However, as a result of the wear test, the contact angle of the composite film reduced to 60°. When the crosslinking agent was added in reaction solution and was cured by UV irradiation, contact angle of the coating film showed 130°. Even through wear test, the UV-irradiation-curing composite film maintained its contact angle ca.100°. Repeated coating and UV irradiation-curing formed the super water – repellent film, and even through wear test it maintained excellent water – repellency, its contact angle being reduced only to 130°C. The experimental process involved the reaction of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)(cas: 1985-51-9).Formula: C13H20O4

The Article related to acrylic silicon active methylene crosslinking silica particle water repellent, Coatings, Inks, and Related Products: Acrylic and Water-Sol (Electrophoretic) Resin Coatings and other aspects.Formula: C13H20O4

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On May 31, 2007, Zhao, Qian; Zheng, Jiaming; Gao, Tongwen; Bai, Yunfei; Hou, Chaojun published an article.Computed Properties of 1985-51-9 The title of the article was Synthesis of neopentyl glycol dimethacrylate catalyzed by sodium bisulfate. And the article contained the following:

Neopentyl glycol dimethacrylate was synthesized by esterification of methacrylic acid and neopentyl glycol over sodium bisulfate catalyst. Influence of reaction conditions on the yield of esterification were investigated. The optimum conditions were obtained as follows: methacrylic acid to neopentyl glycol molar ratio 2.1:1, dosage of sodium bisulfate = 7.5% of neopentyl glycol; cyclohexane dosage = 60% of neopentyl glycol; dosage of hydroquinone = 0.625% of neopentyl glycol; reaction temperature 110-115°; reflux and water segregating for 2.0 h. Neopentyl glycol dimethacrylate yield of over 94% was obtained under the optimum conditions. Sodium bisulfate exhibited higher catalytic activity, non-corrosiveness, non-pollution to the environment and repeated usability. The experimental process involved the reaction of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)(cas: 1985-51-9).Computed Properties of 1985-51-9

The Article related to neopentyl glycol dimethacrylate synthesis sodium bisulfate methacrylic acid, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Computed Properties of 1985-51-9

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On August 31, 1990, Os’kina, O. Yu.; Usmanov, S. M.; Sivergin, Yu. M. published an article.Name: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate) The title of the article was Dielectric relaxation in some diacetylene derivatives. And the article contained the following:

The dielec. relaxation of diacryl derivatives of 1.6-hexa-2,4-diyne was studied at 100-260 K and at frequency of 60-105 Hz. The distribution functions of the relaxation times were analyzed. Mechanisms of the mol. motion are discussed in terms of the function of dielec. relaxation. The experimental process involved the reaction of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)(cas: 1985-51-9).Name: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)

The Article related to dielec relaxation polarization diacetylene derivative, acryl derivative hexadiyne dielec constant, Electric Phenomena: Dielectric and Electret Properties (Including Electric Moments, and Polarizability) and other aspects.Name: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On August 13, 2013, Lattuada, Marco; Del Gado, Emanuela; Abete, Tiziana; de Arcangelis, Lucilla; Lazzari, Stefano; Diederich, Vincent; Storti, Giuseppe; Morbidelli, Massimo published an article.Recommanded Product: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate) The title of the article was Kinetics of Free-Radical Cross-Linking Polymerization: Comparative Experimental and Numerical Study. And the article contained the following:

Modeling free radical polymerization processes in the presence of crosslinkers is a challenging problem that has been addressed using numerous techniques for over more than half a century. However, a model providing a comprehensive description of the phenomenon has not been proposed yet. In this work, we implement a simple free-radical polymerization scheme of a monovinyl (difunctional) monomer and a divinyl (tetrafunctional) crosslinker in a Monte Carlo (MC) scheme, which describes polymer dynamics using a bond-fluctuation model. MC simulations allow us to follow the entire polymerization kinetics and the formation of a percolating network (gel phase) by realistically taking into account diffusion limitations, to extract scaling information at the percolation threshold and to recover the distribution of number of monomer units between two successive fully crosslinked units, from which the extent of swelling can be computed. The predictions of MC simulations are also successfully compared to a kinetic model based on numerical fractionation, with kinetic constants used as fitting parameters. MC data and kinetic simulations are compared to some exptl. data on the swelling behavior of polyacrylamide hydrogels and of poly(Me methacrylate) (PMMA) gels, exhibiting good agreement. We conclude that the proposed MC simulation scheme represents a powerful tool from which precious and exptl. inaccessible information on polymerization processes in the presence of crosslinkers can be extracted The experimental process involved the reaction of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)(cas: 1985-51-9).Recommanded Product: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)

The Article related to kinetic free radical crosslinking polymerization numerical, Chemistry of Synthetic High Polymers: Polymerization Kinetics, Mechanisms, Thermodynamics, Catalysis, Catalysts and other aspects.Recommanded Product: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On November 30, 1981, Fujisawa, Seiichiro; Masuhara, Eiichi published an article.Quality Control of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate) The title of the article was Determination of partition coefficients of acrylates, methacrylates, and vinyl monomers using high performance liquid chromatography (HPLC). And the article contained the following:

Retention times (Rt) for acrylates, methacrylates, and vinyl monomers were measured with 2 different columns (C18 Corasil and C8 LiChrosorb) using reverse-phase HPLC in order to obtain their partition coefficients between 1-octanol and water (log P). The log P values of test compounds were determined from the regression curves between Rt and log P values of a number of standards using C8 LiChrosorb. The log P values obtained in this manner agreed closely with the log P values observed in previous studies. However, the peaks of these compounds were not sharp and some compounds were eluted for > 10 min. Thus, the measurement of accurate Rt values is tedious. C18 Corasil was therefore used in a mobile phase (MeOH-H2O 85:15). The Rt of some methacrylates with P values over 4 were delayed due to the hydrophobic interaction between these compounds and the C18 packing material. However, in the measurable region of the log P values (about -1 to +4), log P correlated linearly with log Rt following 2 different regression curves: one for aliphatic and aromatic compounds with the functional groups (r = 0.92), and the other for compounds without these groups (r = 0.99). Log P values of methacrylates widely used in dentistry can be determined easily and accurately by HPLC. The experimental process involved the reaction of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)(cas: 1985-51-9).Quality Control of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)

The Article related to partition coefficient acrylate monomer, liquid chromatog acrylate monomer, methacrylate monomer liquid chromatog, vinyl monomer liquid chromatog, dental monomer partition coefficient and other aspects.Quality Control of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Mleziva, Josef; Jarusek, Jaroslav; Cermak, Vladimir; Vecera, Miroslav published an article in 1978, the title of the article was Epoxy-acrylic esters as film-formers for uv curing.Related Products of 1985-51-9 And the article contains the following content:

The effectiveness of various catalysts (quaternary ammonium salts, amines) in the esterification of bisphenol A- epichlorohydrin copolymer [25068-38-6] by methacrylic acid [79-41-4] is discussed. The effect of polyol acrylates and methacrylates on the viscosity of epoxy methacrylates and on the photochem. reactivity of coatings is described. The experimental process involved the reaction of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)(cas: 1985-51-9).Related Products of 1985-51-9

The Article related to methacrylic acid esterification epoxy resin, catalyst esterification epoxy resin, epoxy resin acrylate coating, crosslinking photochem epoxy acrylate, amine catalyst esterification epoxy and other aspects.Related Products of 1985-51-9

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

On April 8, 2021, Bachmann, Joel; Gleis, Elisabeth; Schmoelzer, Stefan; Fruhmann, Gabriele; Hinrichsen, Olaf published an article.Category: esters-buliding-blocks The title of the article was Photo-DSC method for liquid samples used in vat photopolymerization. And the article contained the following:

The photo differential scanning calorimetry (photo-DSC) is an appropriate method to characterize photopolymers used in additive manufacturing (AM). Important process parameters such as optimal UV exposure time and reaction heat can be attained by this method. However, achieving reliable and meaningful results from photo-DSC experiments requires careful sample preparation, i.e. the selection of a suitable sample shape, sample mass and sample holder (crucible). The sample shapes drop and spread with 1.0 mg and 2.8 mg sample masses were studied in this study. Three different times from sample preparation until the start of the measurement (0, 4 and 7 h) were tested, to study different surface effects such as oxygen-diffusion, prior UV-curing through ambient radiation and evaporation of volatile components. While the 1.0 mg spread sample shape offers the thinnest film thickness (40μm) and thus the closest comparability to high resolution print jobs, the 2.8 mg drop shape offers a more robust sample preparation with minimized surface effects. To further reduce time-dependent surface effects, this study shows how a preexisting test protocol was shortened from 42 min to 24 min without losing measuring accuracy. Furthermore, to reduce evaporation, different covers were placed on different crucibles, which were tested over time in the device’s automated sample changer (ASC) that enables automated and consecutive measurements. The combination of a cold pressed 85μL crucible covered with a 300μL Al2O3 crucible, which is removed shortly before the actual measurement, provides the best sample preparation for the ASC since mass loss remains below 1% for up to 10 h. Finally, two two-part resin systems, namely a methacrylate-urethane and an acrylate-epoxy based resin that are used in Digital Light Synthesis (DLS) are characterized part by part and in mixed state. Together with the study of different temperatures and atmospheres, it was possible to identify not only the part with the photoinitiator and the type of system (radical or cationic), but also a difference between methacrylates and acrylates with the aid of the photo-DSC method. The experimental process involved the reaction of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)(cas: 1985-51-9).Category: esters-buliding-blocks

The Article related to photo dsc liquid vat photopolymerization, continous liquid interface production (clip), digital light synthesis (dls), photo dsc, photo-dsc method, sample preparation, vat photopolymerization and other aspects.Category: esters-buliding-blocks

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics