2- hydroxyethylmethacrylate

DSEP direct soapless emulsion polymerization, SSEC seeded soapless emulsion copolymerization, DDC direct dispersion copolymerization, TDSC two-stage dispersion copolymerization, ATES Allyl trietoxysilane, VTES vinyl trietoxysilane, DMAEM dimethylaminoethyl-methacrylate, CMS chloromethylstyrene, GA glutaraldehyde, AAc Acrylic acid Aam Acrylamide HEMA 2-hydroxyethylmethacrylate. 

Radiation Treatment NVP, 2-hydroxyethylmethacrylate (HEMA), and acrylamide (AAm) have been grafted to the surface of ethylene-propylene-diene monomer (EPDM) rubber vulcanizates using the radiation method (from a Co 7 source) to alter surface properties such as wettability and therefore biocompatibility [197]. Poncin-Epaillard et al. [198] have reported the modification of isotactic PP surface by EB and grafting of AA onto the activated polymer. Radiation-induced grafting of acrylamide onto PE is very important... 

Kragl and Dreisbach reported on the asymmetric diethylzinc addition to benzaldehyde using a chiral homogeneous catalyst supported on a soluble polymethacrylate.[55] l, L-Diphenyl-L-prolinol was bound to a copolymer from 2-hydroxyethylmethacrylate and octadecylmethacrylate forming a soluble catalyst with a Mw of 96 000 (Figure 4.39). 

In one approach, polymethacrylate-type monoliths have been fabricated by copolymerization of the chiral monomer 0-9-[2-(methacryloyloxy)ethylcarbamoyl]-10,11-dihydroquinidine 1 or 0-9-(tert-butylcarbamoyl)-ll-[2-(methacryloyloxy) ethylthio]-10,ll-dihydroquinine 2 (see Figure 1.34a), the comonomer 2-hydroxyethylmethacrylate (HEMA), the crosslinker ethylenedimethacrylate (EDMA) in presence of the binary porogenic solvent mixture cyclohexanol and 1-dodecanol, directly in a single step within fused-silica capillaries. Initiation of the polymerization by either thermal treatment or UV irradiation yielded microglobular polymer morphologies, such as those well known from their corresponding nonchiral... 

Biodegradable amphiphilic networks have been synthesized by free radical copolymerization of PCL or PD,L-LA dimacromonomers with a hydrophilic comonomer, i.e., 2-hydroxyethylmethacrylate (HEMA) [45, 46, 114]. Well-defined a,cD-methacryloyl PCL and PD,L-LA oligomers were synthesized by the living ROP of the parent monomers initiated by diethyl alimiinum 2-hydroxyethyl-... 

Deviations are also observed in some copolymerizations where the copolymer formed is poorly soluble in the reaction medium [Pichot and Pham, 1979 Pichot et al., 1979 Suggate, 1978, 1979]. Under these conditions, altered copolymer compositions are observed if one of the monomers is preferentially adsorbed by the copolymer. Thus for methyl methacrylate (M1 )-/V-vinylcarbazole (M2) copolymerization, r — 1.80, r2 = 0.06 in benzene but r — 0.57, > 2 0.75 in methanol [Ledwith et al., 1979]. The propagating copolymer chains are completely soluble in benzene but are microheterogeneous in methanol. /V-vinylcarba-zole (NVC) is preferentially adsorbed by the copolymer compared to methyl methacrylate. The comonomer composition in the domain of the propagating radical sites (trapped in the precipitating copolymer) is richer in NVC than the comonomer feed composition in the bulk solution. NVC enters the copolymer to a greater extent than expected on the basis of feed composition. Similar results occur in template copolymerization (Sec. 3-10d-2), where two monomers undergo copolymerization in the presence of a polymer. Thus, acrylic acid-2-hydroxyethylmethacrylate copolymerization in the presence of poly(V-vinylpyrrolidone) results in increased incorporation of acrylic acid [Rainaldi et al., 2000]. 

FIGURE 6.23 The release of thiamine HC1 from a glassy poly(2-hydroxyethylmethacrylate) sheet. [Graph reconstructed from data by P. I. Lee, in Controlled-Release Technology Pharmaceutical Applications, P. I. Lee and W. R. Good (Eds.), ACS Symp. Ser. No. 348, American Chemical Society, Washington, D.C., 1987. p. 71.]... 

Yu. N. Bolbukh, Ye. P. Mamunya, and V. A. Tertykh, Thermomechanical investigation of composites based on 2-hydroxyethylmethacrylate and high disperse initial and modified silicas, J. Therm. Anal. Cal. 81(1), 15-20 (2005). 

Other acrylic structural adhesives can be used on poorly prepared metal surfaces. Inclusion of reactive monomers having phosphate groups can lead to significant improvements in primary bonds to many unprepared metals.76 Kowa American supplies one such monomer, 2-hydroxyethylmethacrylate acid phosphate. 

Anion-exchange resins especially useful for sorption and chromatographic separation of biopolymers have been prepared by treating ethylenedimethacrylate-2-hydroxyethylmethacrylate or 2-hydroxyethylacrylate-methylenebisacrylamide copolymer with l-chloro-2-diethylaminoethane hydrochloride or with epichlorohydrin and triethanolamine or with triethylglycidylammonium chloride. 

The polymerization of a water-soluble monomer such as AM, acrylic acid (AA), sodium acrylate (NaA), or 2-hydroxyethylmethacrylate (HEMA), can be carried out easily in inverse microemulsion or/and bicontinuous microemulsion. These water-soluble monomers also act as cosurfactants, increasing the flexibility and the fluidity of the interfaces, which enhances the solubilization of the monomer. A cosurfactant effect during the polymerization of vinyl acetate in anionic microemulsions has also been reported [12]. 

MAGME polymers can either be crosslinked in a selfcondensation reaction or with a polyol (Scheme 1). The polyol can either be blended or co-polymerized with MAGME. An example of such monomer is 2-hydroxyethylmethacrylate. In this paper we will only discuss selfcondensation of MAGME-polymers. 

The carboxylic groups of mesoporphyrin-lX 15 b) and mesohemin-IX 15 c) were converted into isocyanate groups 15 d, e). The reaction with hydroxji group containing crosslinked polymers like poly(2-hydroxyethylmethacrylate) or sephadex (with hydroxy-propyl groups) in pyridine at room temperature led to fixed porjAyrins 20 a, b). 

Not only polystyrene supports, also other polymer supports were used in the preparation of polymeric amino alcohol ligands for dialkylzinc alkylation. For example, a vinylferrocene derivative with A,N -disubstituted norephedrine was copolymerized with vinylferrocene [60]. This polymeric chiral ligand (53) was used in the ethylation of aldehydes with moderate activity. Brown has reported that chiral oxazaborolidines have catalytic activity in the addition of diethyl zinc to aldehydes [61]. Polymers bearing chiral oxazaborolidines 37 were also active in the reaction and result on moderate enantioselectivity (<58 % ee) [62]. Enantiopure a,a -diphenyl-L-prolinol coupled to a copolymer prepared from 2-hydroxyethylmethacrylate and octadecyl methacrylate... 

A particularly large number of applications of cyclophosphazene derivatives has been noted. Of particular interest is the large number of reports focusing on methacryloyloxyethoxy derivatives, typically N3Pj(0CH2CH20C(0)C(Me)=CH2) j. Uses claimed for derivatives center on the easy cure which can be accomplished due to the reactivity of the appended methacrylate. Several reports focus solely on the preparation of the hexasubstituted derivative either from 2-hydroxyethylmethacrylate and (NPCl2)3 or by two step indirect routes which have been... 

The reaction can be used to introduce chromophores onto the surface of polymeric films containing hydroxy groups. When a poly(2-hydroxyethylmethacrylate) (PHEMA) film 14 was immersed in an acetonitrile solution of dimethyl terephthalate (DMTP) and l-methyl-2-arylcy-clopropane 13 (where the aryl group is 1-pyrenyl or 9-phenanthryl) and then irradiated at 313nm, a chemically modified film 15 was obtained that gives absorption and fluorescence spectra similar to 13, and therefore may be useful as a photocatalyst, photochromic device etc. - ... 

Li, X., Cui, Y. (2008). Study on synthesis and chloramphenicol release of poly(2-hydroxyethylmethacrylate-co-acrylamide) hydrogels. Chinese Journal of Chemical Engineering 16 640-645. 

STUDY OF THE KINETICS OF RELEASE OF BIOCIDES FROM SWOLLEN GELS OF 2-HYDROXYETHYLMETHACRYLATE/N-VINYL-... 

In the last generation endodontic and restorative materials molecules such as 2-hydroxyethylmethacrylate (HEMA), triethyleneglycol dimethacrylate (TEGDMA) and 2,2-bis[4-(2-hydroxy-3-methacryloxy)-phenyl]propane (Bis-GMA) are present. In the clinical use these compounds are chemically or photochemically polymerised and the degree of polymerization - which is never complete - determines the release of some quantity of uncured monomers in the pulpar cavity. Thus, the pulpal tissues can be exposed - through the dentinal diffusion - to these compounds that may cause inflammatory reactions and cellular damage, as confirmed by several reports. ... 

In this paper we have described the separation and characterization of four polymers by ITP Ccurboxymethylcellulose (CMC) (11) with degree of substitutions of 0.4-1.2 carboxymethyl group poly(2-hydroxyethylmethacrylate-co-2-acrylamido-2-methylpropanesulfonate)... 

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