2-hydroxyethylmethacrylate HEMA

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. 

HEC hydroxyethylcellulose HEK human embryonic kidney cells HEMA hydroxyethylmethacrylate... 

DMF, dimethylformamide BzOH, benzylalkohol HEMA, hydroxyethylmethacrylate P-HEMA, poly(hydroxyethylmethacrylate) EtOH, ethanol DMSO, dimethylsulfoxide CH3CN, acetonitile. 

Figure 3.103. Fluorescence spectra of a 7-mm long and 10-mm diameter ASPT doped poly-HEMA (HEMA = hydroxyethylmethacrylate) rod excited with 1.06-pm radiation, (a) Excitation energy is below the lasing threshold and (b) the spectra were recorded above the lasing threshold energy. Solid line 0.4 mJ dotted line 0.5 mJ long dashed 0.8 mJ. (From Ref. [158] with permission of the American Institute of Physics.)...

DEA, /V,/V-diethylaminoethylmethacrylate HEMA, hydroxyethylmethacrylate MA, methyl acrylate MMA, methyl methacrylate nBk, /7-butyl acrylate NIPAM, /V-isopropylacrylamide NVS, 1- 4-vinylstyryl)naphthalene S, styrene fBA, butyl acrylate. 

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... 

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-... 

A photocurable resin (hydroxyethylmethacrylate or HEMA) was injected (by N2 gas) into two aligned PMMA channel plates for bonding and surface modification. This method can bond PMMA plates well and produce a hydrophilic... 

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]. 

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. ... 

Hydroxyethyl methacrylate CAS 868-77-9 EINECS/ELINCS 212-782-2 Synonyms Ethylene glycol methacrylate Ethylene glycol monomethacrylate Glycol methacrylate Glycol monomethacrylate GMA HEMA 2-Hydroxyethyl ester methacrylic acid Hydroxyethyl methacrylate p-Hydroxyethylmethacrylate 2-Propenoic acid, 2-methyl-, 2-hydroxyethyl ester Empirical CeHioOs Formula CH2 C(CH3)C00CH2CH20H Properties Clear mobile liq. sol. in common org. soivs. misc. with water m.w. 130.16 dens. 

The hydrogel used in this study has been the poly(2-hydroxy-ethylmethacrylate) obtained by a radical polymerization of the 2-hydroxyethylmethacrylate (HEMA) accomplished at 60 C for 2 hours using 0.5% by weight of ethyleneglycoldimethacrylate (EDMA) as cross-linking agent and 0.1% by weight of a,a -bisisobutyronitrile (AIBN) initiator. The polymer shows perfect transparency and is able to absorb and desorb water reversibly. ... 

Three plants are designed for the production of 5000 tons/year of a terpolymer consisting of 70wt% methylmethacrylate (MMA), 15wt% ra-butylacrylate (mBA), and 15wt% hydroxyethylmethacrylate (HEMA). Two weight percent (2 wt%) of tc/ t-amyl-peroxy-2-ethylhexanoate was used as initiator. 

This approach has been used to hydrophilize the surface of the cycloaliphatic polyurethane Tecoflex which is the material used for catheter systems. Upon plasma treatment radicals are formed on the polymer surface which in contact with air react with oxygen and form hydroperoxides [ 108]. The subsequent pho-toinitiated or thermal decomposition of the hydroperoxides produces secondary radicals that are able to initiate the polymerization of suitable monomers [109] (Fig.l2). 2-Hydroxyethylmethacrylate (HEMA), hydroxybutylacrylate (HBA) or acrylic acid (AAc) can be used as hydrogel building monomers. 

The reaction systems consisted of a monomer mixture containing 90% 1,6-hexanedioldiacrylate (HDDA technical grade Aldrich), with 10% 2-hydroxyethylmethacrylate (HEMA Polysciences), which was added to slow the front velocity so that multiple parabolas could be seen in the same sample. A... 

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