Acrylic acid urethane

Methacrylates and acrylates are readily synthesized from low-cost commercially available resins and (meth)acrylate intermediates or (meth)acrylic acid [19]. A wide range of structural backbones are available, including epoxies, urethanes. 

II. B polyethylene glycol, ethylene oxide, polystyrene, diisocyanates (urethanes), polyvinylchloride, chloroprene, THF, diglycolide, dilac-tide, <5-valerolactone, substituted e-caprolactones, 4-vinyl anisole, styrene, methyl methacrylate, and vinyl acetate. In addition to these species, many copolymers have been prepared from oligomers of PCL. In particular, a variety of polyester-urethanes have been synthesized from hydroxy-terminated PCL, some of which have achieved commercial status (9). Graft copolymers with acrylic acid, acrylonitrile, and styrene have been prepared using PCL as the backbone polymer (60). 

Carboxymethylcellulose, polyethylene glycol Combination of a cellulose ether with clay Amide-modified carboxyl-containing polysaccharide Sodium aluminate and magnesium oxide Thermally stable hydroxyethylcellulose 30% ammonium or sodium thiosulfate and 20% hydroxyethylcellulose (HEC) Acrylic acid copolymer and oxyalkylene with hydrophobic group Copolymers acrylamide-acrylate and vinyl sulfonate-vinylamide Cationic polygalactomannans and anionic xanthan gum Copolymer from vinyl urethanes and acrylic acid or alkyl acrylates 2-Nitroalkyl ether-modified starch Polymer of glucuronic acid... 

Metal oxides such as alumina Polyallyls Polybutadiene Polyamino acids Urethanes Acrylic polymers Cellulose Cross-linked dextrans Agarose... 

Further expts were conducted on candidate proplnts for space environments. Horton (Ref 112) subjected a urethane-based propint, a polybutadiene-acrylic acid-acrylonitrile based propint, and a carboxyl-terminated polybutadiene based proplnt to 1.5 x 107 R, as well as to high and low temp and pressure. The data indicated that the urethane proplnt withstood the tests best. Scott et al (Ref 126) conducted tests on two polycarbutene solid proplnts which were irradiated to 107 R and subjected to high vacuum exposure as a function of temp without much change... 

Poly(ethyl methacrylate) (PEMA) yields truly compatible blends with poly(vinyl acetate) up to 20% PEMA concentration (133). Synergistic improvement in material properties was observed. Poly(ethylene oxide) forms compatible homogeneous blends with poly(vinyl acetate) (134). The T of the blends and the crystaUizability of the PEO depend on the composition. The miscibility window of poly(vinyl acetate) and its copolymers with alkyl acrylates can be broadened through the incorporation of acrylic acid as a third component (135). A description of compatible and incompatible blends of poly(vinyl acetate) and other copolymers has been compiled (136). Blends of poly(vinyl acetate) copolymers with urethanes can provide improved heat resistance to the product providing reduced creep rates in adhesives used for vinyl laminating (137). 

Polyester acrylates are normally formed by the reaction of polyester or polyether polyols reacted with acrylic acid. As with urethane acrylates, this gives the chemical structure of polyester acrylates great... 

An acrylic oligomer is a higher molecular weight functional acry-lated molecule which may be, for example, polyesters of acrylic acid and methacrylic acid. Other examples of acrylic oligomers are the classes of urethane acrylates and urethane methacrylates. Urethane acrylates are manufactured from aliphatic or aromatic or cycloaliphatic diisocyanates or polyisocyanates and hydroxyl-containing acrylic acid esters. 

In an earlier investigation by Yang [1] triblock urethane acrylate oligomers terminated with acrylic acid were prepared and used in curable pressure sensitive adhesive compositions. 

Hubbell [2] prepared biocompatible hydrogels consisting of poly(acrylic acid-b-ethylene oxide) crosslinked with hydrolytically susceptible carbonates, (IV), urethanes, (V), ureas, (VI), ester amides, (VII), and diamides, (VIII). 

AA acrylic acid LDPE low density polyethylene NBR poly (butadiene-acrylonitrile) PA polyamide PAA poly(acrylic acid) PAN polyacrylonitrile PB polybutadiene PC polycarbonate PDMS polydimetylsiloxane PE polyester PEBA polyetheramide-block-polymer PI polyimide PMA poly(methyl acrylate) POUA poly(oxyethylene urethane acrylate) PP polypropylene PPO poly(phenylene oxide) PTMSP poly(trimethylsilylpropyne) PUR polyurethane PVA poly(vinyl alcohol) PVC poly(vinyl chloride). 

Acrylic acid based Urethane based Adhesive resistant to fuels Heiner and Coates EP 741005, 1995 3M... 

Starch utilization in plastic and rubber compositions began in the 60s and 70s, with oxidised starch in rubber and other polymers, such as urethane foams, poly(vinyl alcohol) and copolymers of poly(ethylene-co-acrylic acid) formulations, and as a filler in plasticized polyvinyl chloride (PVC) [37,39]. In another technique, gelatinized starch was mixed with PVC latex and the water was removed to give a PVC-starch composition, which was mixed with a PVC plasticizer such as dioctyl phthalate (DOP). 

The manufacture of optically active L-a-amino acids from racemic amino acid amides was shown by Mitsubishi Gas Chemical, Japan [117]. In this process different microorganisms were immobilized on polymers made from (meth)acrylic acid esters or urethane acrylates and applied for the stereoselective hydrolysis of racemic amides (Scheme 43). o/L-Leucinamide (rac-136), for example, can be hydrolyzed with Mycoplana bullata cells immobilized on polyethylene glycol dimethacrylate-AT,N -methylenebisacrylamide copolymer at 30 C to produce i-leudne (l-137) over 3,000 h. 

Generally, a vinyl ester could be classified as methyl acrylic acid extended bisphenol A epoxy, acrylic acid bisphenol E epoxy, a bisphenol F novolac epoxy, or a urethane modified ester. Each will provide a different degree of resistance. Vinyl ester lining systems have been successfully applied to provide protection to stack liners, ducting, scrubbers, thickener tanks, and other vessels in FGD plants, stacks and ducts, electrostatic precipitators, and bag house environments. 

Chem. Descrip. Acrylic resin Uses Acrylic for urethane coatings Properties Solid m.w. 3,500 m.p. 104 C acid no. 0 hyd. no. 89 Jonrez IC-2624 [MeadWestvaco]... 

The prepolymers can be different types of materials. They must, however, contain residual unsaturation in order to react and crosslink with the monomers. Examples of such materials may be polyurethane acrylates that are prepared from urethane prepolymers. The excess isocyanate groups are treated with hydroxyethyl or hydroxypropyl acrylates. Other prepolymers with terminal and/or pendant hydroxy groups are also often esterified with acrylic acid. The oligomers might also be bisphenol A diglycidyl ethers prereacted with acrylic acid to form terminal acrylate groups. An example of these would be ... 

Poly(acrylate-ien-urethane-urea), 256-260 Poly (acrylic acid-ABc-vinyl alcohol), 264 Polyacrylonitrile, 3 Polybutadiene, 3, 273, 310 Poly(butadiene-co-methacrylic acid), 165 Poly(butadiene- -styrene), 79ff Poly(butadiene-ipn-styrene), 239ff Poly(n-butyl acrylate-ipn-methyl methacrylate), 267 Polycarbonate, 42... 

FTIR spectroscopy has proven to be particularly useful in gaining an understanding of the biocompatibility phenomenon. It is believed [746, 841, 856, 857] that protein adsorption is the initial step in the interaction of blood with implanted biomaterials, followed by adhesion of cells and subsequent tissue attachment. This implies that the substrate surface characteristics influence the process, which was confirmed by ATR studies of albumin adsorption on calcium phosphate bioceramics and titanium [763] and segmented polyurethane [764], albumin and fibrinogen on acetylated and unmodified cellulose [765, 766], poly(acrylic acid)-mucin bioadhesion [767], polyurethane-blood contact surfaces [768], and other proteins on poly(ester)urethane [769], polystyrene [767, 771] and poly(octadecyl methacrylate) [771] and by IRRAS study of adsorption of proteins on Cu [858]. Another branch of IR spectroscopic studies of protein adsorption relates to microbial adhesion (Section 7.8.3). 

Polycarbonate urethane having poly(acrylic acid) functional groups Highly porous scaffold fabricated by pressure differential solvent casting — particulate leaching Dubey et al. (2011)... 

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