n-Butyl acrylate; Butyl ester of ..
Sodium acrylate is copolymerized with acrylamide to make an anionic copolymer used as a flocculant in water treatment.
Synthesis of n-Butyl acrylate - Chempedia - LookChem
AFM examination of a relatively low concentration of spherical brushes formed by grafting n-butyl acrylate from silica particles deposited on mica surfaces show that the swollen brush has collapsed and that the hard silica core is surrounded by the soft grafted chains.
Polymers and copolymers of methyl methacrylate are also used in undissolved surface coatings, adhesives, sealants, impact modifiers, emulsion polymers, surgical bone cements, packaging applications, vinyl siding and other construction materials.
n-butyl acrylate | Sigma-Aldrich
Laboratory monitoring methods : gas chromatography
(WS/T161-1999, air operations)
air Trace butyl acrylate and butyl methacrylate Identification (GC) [ published in Russian] / Ozhandzhapanyan N.; Puzyan E.A.
The three most important acrylic monomers used for coatings, paints, inks, and pressure sensitive adhesives are poly(ethyl acrylate), poly(butyl acrylate), and poly(ethylhexyl acrylate) and blends thereof that are often copolymerized in various ratios with other monomers such as methacrylates, styrenes, acrylamide, acrylonitrile to modify their properties. Methacrylates, styrenes and acrylonitrile are usually added to increase the cohesive strength (hardness) and to reduce or to eliminate the tack after drying, whereas (meth)acrylamide, (meth)acrylic acid, glycidyl acrylates and maleic anhydride are added as crosslinkers and/or as cure accelerators. Some of these monomers, like acrylonitrile and methacylamide, also improve the solvent and oil resistance.
Search results for n-butyl acrylate at Sigma-Aldrich
Atom transfer radical polymerization (ATRP) of -butyl acrylate is reported. Controlled polymerizations were performed using a CuBr/,‘,‘ ‘,‘ ‘-pentamethyldiethylenetriamine catalyst system in conjunction with an alkyl bromide as the initiator. Low molecular weight polymers with narrow molecular weight distributions were obtained by the addition of a solvent to create a homogeneous catalytic system. The addition of the solvent was necessary to decrease the polymerization rate and afford low polydispersity materials. This differs from the ATRP of methyl or -butyl acrylate using this catalytic system, which do not require the addition of a solvent to obtain well-defined polymers. Subsequent hydrolysis of the polymer in refluxing dioxane with addition of HCl afforded poly(acrylic acid). Characterization using 1H NMR and FT-IR confirmed complete hydrolysis of the ester group. Further use of poly(-butyl acrylate) as a macroinitiator for block copolymerizations followed by hydrolysis of the ester group produced amphiphilic block copolymers. In addition, the preparation of an ABC triblock copolymer of poly(-butyl acrylate)--poly(styrene)--poly(methyl acrylate) by ATRP is reported.
There are only several acrylic monomers used for PSAs, such as butyl acrylate (BA) and 2-ethylhexyl acrylate (EHA) [7–9] .The properties of emulsion depend on particle size of emulsion.
The butyl acrylate synthesis from the ..
n-Butyl cyanoacrylate synthesis. A new quality step …
16/12/2014 · Synthesis of butyl acrylate in a fixed-bed adsorptive reactor over Amberlyst 15
n-Butyl cyanoacrylate synthesis
Synthesis of maleimide-terminated n-butyl acrylate oligomers by atom transfer radical polymerization: Study ..
Synthesis of n-Butyl Acrylate ..
Atom transfer radical polymerization (ATRP) of tert-butyl acrylate is reported
BUTYL ACRYLATE, N- TCI AMERICA: ..
Acrylic acid and its esters undergo the reactions of the double bond which readily combine with themselves or other monomers (e.g amides, methacrylates, acrylonitrile, vinyl, styrene and butadiene) to form homopolymers or co-polymers which are used in the production of coatings, adhesives, elastomers, super absorbent polymers, flocculants, as well as fibres and plastics.
Mechanism for the synthesis of n-butyl acetate » 100% …
A series of 10- and 20-arm starlike block copolymers containing inner soft poly(-butyl acrylate) (PBA) block and outer hard poly(methyl methacrylate) (PMMA) block were synthesized by atom transfer radical polymerization (ATRP). Short macroinitiators for preparation of starlike copolymers, poly(2-bromoisobutyryloxyethyl acrylate) (PBiBEA) with degree of polymerization DP = 10 and 20, was prepared by ATRP of trimethylsilyloxyethyl acrylate (HEATMS) and subsequently esterified. Partial star coupling during the star extension with PMMA blocks was observed, and the coupling increased with increasing number of arms and arm length. Phase-separated morphologies of cylindrical hard PMMA block domains arranged in the soft PBA matrix were observed by atomic force microscopy and small-angle X-ray scattering. The mechanical and thermal properties of the copolymers were also thoroughly characterized, and their thermoplastic elastomer behavior was studied. Tensile strength of the starlike copolymers was considerably higher compared to linear and three-arm stars with similar compositions.
Mechanism for the synthesis of n-butyl acetate
Ionic liquids based on imidazolium, pyridinium, and alkylammonium salts were investigated as solvents in free radical polymerization of the model monomer -butyl methacrylate. The properties of the ionic liquids were systematically varied by changing the length of the alkyl substituents on the cations, and by employing different anions such as tetrafluoroborate, hexafluorophosphate, tosylate, triflate, alkyl sulfates and dimethyl phosphate. Results were compared to analogous polymerizations in toluene and in bulk. The solvents have no detectable influence on polymer tacticity. However, the molar masses obtained and the degree of polymerization, respectively, are very sensitive to the choice of the solvent. The degrees of polymerization are significantly higher when polymerizations were carried out in ionic liquids compared to polymerization in toluene, and can even exceed the values obtained by bulk polymerization. Imidazolium salts unsubstituted at C-2 result in an increase in the degree of polymerization of the poly(butyl methacrylate) with increasing viscosity of these ionic liquids. Methyl substitution at C-2 of the imidazolium ion results in an increase in the viscosity of the ionic liquid and in a viscosity independent degree of polymerization of the poly(butyl methacrylate). Ionic liquids based on imidazolium salts seem preferable over pyridinium and alkylammonium salts because of the higher degree of polymerization of the poly(butyl methacrylate)s obtained in the imidazolium salts. The glass transition temperatures and thermal stabilities are higher for poly(butyl methacrylate)s synthesized in the ionic liquids compared to the polymer made in toluene.
mechanism for the synthesis of n-butyl ..
Thermo-responsive butyl acrylate/furfuryl methacrylate copolymer-based (PBF backbone) graft (co)polymers with dynamic covalent linkages between their backbones and side chains via the Diels-Alder reaction of furan/maleimide were synthesized. Atom transfer radical polymerization (ATRP) was used to synthesize graft copolymers with thermo-responsive transformation from graft copolymers to linear polymers with bimodal or wide MWD. The NMR measurements indicated that the Diels-Alder reaction and retro-Diels-Alder reaction occurred, depending on the change of the temperature, meaning that the side chains could be cleaved and reformed according to the variation of the temperature. GPC measurements demonstrated that the molecular weights of the polymers were thermo-responsive. Furthermore three graft copolymers with various branching chains (PBF-g-PBA, PBF-g-P(BMA-co-MA) and PBF-g-PBMA) were compared to study the influence of the compatibility between the backbone and the branching chain on the efficiency of Diels-Alder reaction after cleaving the DA linkage. The results showed that the ability of the side chains to back to the main chain was strongly affected by the compatibility between the backbone and the side chains and the flexibility of the polymer chains.
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