DIMETHYL ACRYLAMIDE COPOLYMER

Meldal M. PEGA a flow stable polyethylene glycol dimethyl acrylamide copolymer for solid phase synthesis. Tetrahedron Lett. 1992 33 3077-3080. 

The polarized luminescence method is sensitive to intermolecular interactions between different components in solution because of a change in the mobility parameters (6) of each of the components (the mobility of the protein macromolecules as a whole or the intramolecular mobility of the polymer chains). Pautov [28] used luminescence-labeled lysozyme and methacrylic acid-ethylene dimethyl acrylamide copolymer (PMAA) to study the mobility of PE-bound lysozyme as a function of the relative protein concentration. Figure 15.7 shows soluble complex formation at low and high protein relative concentrations (P/PEL) precipitation occurs at 1 < P/PEL <12. Based on the mobility change of the bound lysozyme in complexes with relative high protein concentration, Pautov concluded that the bound protein molecules are in a compact array. For the complexes formed at low relative protein concentrations, the compactness of the complex was diminished. Under such conditions the protein associates on the PMAA become less compact and the complex itself more stable. 

Fig. 1. Functional monomers used in acrylamide copolymers. Methacrylamidopropyltrim ethyl ammonium chloride [51410-72-1] (1), acryloyloxyethyltrimethylammonium chioride [44992-01-0] (2), methacryloyloxyethyltrimethylammonium chloride [50339-78-1] (3), /V,/V-dimethy1aminoethy1 methacrylate [2867-47-2] (4), /V,/V-dimethylaminopropy1 acryl amide [3845-76-9] (5), diallyl dimethyl amm onium chloride...

Figure 17-24. Monomers in a copolymer for viscosifying diesel N,N-dimethyl-acrylamide and N,N-dimethylaminopropyl methacrylamide.

TABLE 1. Copolymers of Trans-l,4-bromo-2-butene Formed by Condensing with Selected nucleophiles in AyV-dimethyl Acrylamide Using a 1 1 Reagent Charge"... 

In the mid to late 1990s, Mimotopes was producing rigid injection molded polypropylene devices that were surface grafted with either a hydrophilic copolymer of methacrylic acid/dimethyl acrylamide or the relatively hydrophobic polystyrene.12 The polymer was then suitably deriva-tized to allow the incorporation of a linker system. In contrast to the various commercial resins available at the time, the Crown was a macroscopic, quantized solid phase. As shown in Fig. 2, the Crowns were typically fitted to a polypropylene stem, which in turn could be fitted into a... 

More or less similar behavior has been observed (8) in the blends of the copolymer or the terpolymer with the following bis-A polycarbonate, polyvinyl chloride, poly (ethyl methacrylate), and a terpolymer made from methyl methacrylate, N,N -dimethyl acrylamide, and N-phenyl-maleimide. Because of this unique miscibility characteristic of the a-methyl styrene interpolymers, an attempt was made at compati-bilizing polyarylethers with the interpolymers by attaching pendant chemical groups known to exist in systems with which the interpolymers are miscible. 

Inui K, Okumura H, Miyata T, and Uragami T. Characteristics of permeation and separation of dimethyl acrylamide-methyl methacrylate random and graft copolymer membranes for a benzene/cyclohexane mixture. Polym Bull 1997 39 733-740. 

Trialkyl-4-vinylbenzyl phosphonium chloride/ acrylamide copolymers. This type of crosslinked trialkyl-4-vinylbenzyl phosphonium chloride (TRVB)/acrylamide (AAm) copolymers were prepared by copolymeiization of TRVB, AAm, and MBAAm (crosslinking monomer) in dimethyl sulfoxide. Three TRVBs with different alkyl chain lengths (butyl, hexyl, and octyl) in phosphonium groups were used. They are abbreviated as TBVB, THVB, and TOVB, respectively. The copolymers obtained have phosphonium groups. Therefore, they are crosslinked cationic polymers. 

Rolando and JCrueger [1992] also studied the effects of grafting of various compounds, e.g., acrylic acid (AA), dimethyl acrylamide (DMA), N-vinyl-2-pyrrolidone (NVP) and a copolymer of NVP and TMPTA. The grafting was done by electron irradiation (0.175 MeV) under nitrogen. 

The free-radical copolymerization of acrylamide with three common cationic comonomers diallyldimethylammonium chloride, dimethyl-aminoethyl methacrylate, and dimethylaminoethyl acrylate, has been investigated. Polymerizations were carried out in solution and inverse microsuspension with azocyanovaleric acid, potassium persulfate, and azobisisobutyronitrile over the temperature range 45 to 60 C. The copolymer reactivity ratios were determined with the error-in-variables method by using residual monomer concentrations measured by high-performance liquid chromatography. This combination of estimation procedure and analytical technique has been found to be superior to any methods previously used for the estimation of reactivity ratios for cationic acrylamide copolymers. A preliminary kinetic investigation of inverse microsuspension copolymerization at high monomer concentrations is also discussed. 

Song, L., Liang, D., Kielescawa, J., Liang, J., Tjoe, E., Fang, D., and Chu, B., DNA sequencing by capillary electrophoresis using copolymers of acrylamide and Af,Af-dimethyl-acrylamide. Electrophoresis 2001, 22, 729-736. 

Acrylic acid/acryiamide copolymer. See Acryiates/acrylamide copolymer Acrylic acid/acryiamide poiymer. See Acryiic acid/acrylamide copoiymer Acrylic acid/acrylonitrogens copolymer CAS 61788-40-7 136505-00-5 136505-01-6 Synonyms 2-Propenenitrile, homopolymer, hydrolyzed, block, reaction prods, with N,N-dimethyl-1,3-propanediamine... 

See Styrene/butadiene polymer Ethenylbenzene, polymer with 2-propenamide. See Styrene/acrylamide copolymer Ethenylbenzenesulfonic acid, sodium salt, homopolymer 4-Ethenylbenzenesulfonic acid sodium salt, homopolymer. See Sodium polystyrene sulfonate 4-Ethenylcyclohexene 4-EthenyM -cyclohexene. See 4-Vinylcyclohexene Ethenyidimethoxymethylsilane. See Vinylmethyidimethoxysilane 1 -Ethenyl-1,5-dimethyl-4-hexenyl benzeneacetate. See Linalyl phenylacetate 1 -Ethenyl-1,5-dimethyl-4-hexenyl 3-phenyl-2-propenoate. See Linalyl cinnamate Ethenyl ethanoate. See Vinyl acetate 6-Ethenyl-6-(methoxyethoxy)-2,5,7,10-tetraoxa-6-silaundecane. SeeVinyltris(2-methoxyethoxy) silane... 

Poly [oxyethylene (dimethyliminio) ethylene (dimethyliminio) ethylene dichloride] coagulant, wastewater Polyaluminum chloride coagulant, wastewater treatment Acrylates/acrylamide copolymer Polyaluminum hydroxide chloride sulfate Poly (2-hydroxypropyl-N,N-dimethyl ammonium chloride) Polyquaternium-6 coagulant, water clarification Polyquaternium-6 coagulant, water purification Ammonium alum Ferric sulfate coagulant, water purification plants Aluminum sulfate coagulant, water treatment Acrylates/acrylamide copolymer Aluminum chloride anhydrous Bentonite Calcium hydroxide Calcium monocarbonate Calcium oxide Cetrimonium chloride Diethylaminoethyl acrylate dimethyl sulfate quat. Dimethylamine/epichlorohydrin copolymer Dimethylaminoethyl acrylate dimethyl sulfate... 

Acrylamides copolymer Diethylaminoethyl acrylate dimethyl sulfate quat. Dimethylaminoethyl acrylate dimethyl sulfate Dimethylaminoethyl acrylate methyl chloride quat. Dimethylaminoethyl methacrylate dimethyl sulfate quat. 

Dihydrogenated tallow benzylmonium hectorite thickener, cake mixes Acacia Gum ghatti thickener, candy Arabinogalactan thickener, carpet backing Acrylamides copolymer C12-14 alkyl dimethyl betaine... 

Styrene/acrylamide copolymer 24991-31-9 Polyvinyl butyrate 24991-55-7 PEG dimethyl ether PEG-3 dimethyl ether PEG-4 dimethyl ether Polyglyme Tetraglyme 25013-15-4 Vinyltoluene monomer 25013-16-5 Avox BHA BHA... 

Rieger and coworkers [332] reported a surfactant free RAFT emulsion polymerization of butyl acrylate and styrene using poly(A,iV-dimethylacrylamide) trithiocarbonate macromolecular transfer agent. They observed that the polymerizations were fast and controlled with molar masses that matched well the theoretical values and low polydispersity indexes. Monomer conversions close to 100% were reached and the polymerizations behaved as controlled systems, even at 40% solids contents. The products were poly(lV,lV-dimethyl acrylamide)-b-poly(/i-butyl acrylate) and poly(Al,Al-dimethylacrylamide)-b-polystyrene amphiphilic diblock copolymers formed in situ. 

PAMDMAM = random copolymers of acrylamide with N,N-dimethyl-acrylamide... 

Fig. 14.1. Balance of oil resistance and Gehman freeze point for various copolymers of n-butyl acrylate. O, n-BA only O, n-BA/N,N-dimethyl acrylamide , n-BA/acrylonitrile A, n-BA/ethyl acrylate V, -BA/2-cyanoethyl acrylate x, n-BA/l,l,4-trihydroperfluorobutyl acrylate. (After Tucker and Jorgensen, 1968.)...

Kriz J, Dybal J, Dautzenberg H (2001) Cooperative interactions of unlike macromolecules 3. NMR and theoretical study of the electrostatic coupling of sodium polyphosphates with diallyl(dimethyl)ammonium chloride-acrylamide copolymers. J Phys Chem A 105 7486-7493. doi 10.1021/jp010185b... 

McCormick and coworkers polymerized NIPAm at room temperature via aqueous RAFT process [59]. Extending the study to prepare poly(A,A-dimethyl acrylamide(DMA)- -NIPAm) diblock and poly(DMA-fc-NIPAm- -DMA) triblock copolymers, the group demonstrated that critical micelle temperature (CMT) was lower for diblock than for triblock copolymers, and decreased as the PNIPAm block length was increased [60]. The phase transition temperature of this polymer system may be adjusted from 10 °C to 36 °C by incorporating an additional pH-responsive block [61]. Thermoreversible hydrogels from RAFT-synthesized poly(NIPAm- -DMA- -NIPAm) triblock copolymers were also investigated as potential in vitro cell growth scaffolds [62]. 

These are mentioned occasionally in the polyblend literature. For example, when ethylene/methyl acrylate copolymer was blended with polybutylene terephthalate, maleating the copolymer improved interfacial adhesion and impact strength [208]. Blends of ethy-lene thyl acrylate copolymers with PE are mentioned as commercial thermoplastic elastomers [24]. Ethylene copolymers with ethyl acrylate and carbon monoxide, with acrylonitrile, and with dimethyl acrylamide all provided strong hydrogen bonding, producing miscibility... 

Ethylene-vinyl acetate-carbon monoxide terpolymers Ethylene-ethyl acrylate-carbon monoxide terpolymers Ethylene-n-butyl acrylate-carbon monoxide terpolymers Ethylene-N,N-dimethyl acrylamide (17-25 wt% DMA) copolymers Chlorinated polyethylene (> 42 wt% Cl)... 

PVOH miscibility has been noted with poly(N, N-dimethyl acrylamide) [962] and partial miscibility noted with methyl cellulose [963]. With poly(N, N-dimethyl acrylamide), vinyl alcohol-vinyl acetate copolymers are miscible above 12 mole% vinyl alcohol. Fully hydrolyzed PVOH is not miscible with poly(2-ethyl oxazoline)(PEOx), but ethylene-vinyl alcohol copolymers (68 and 78 mole% vinyl alcohol) are miscible with PEOx [964]. Vinyl acetate-vinyl alcohol copolymers were shown to be miscible with PEOx over a wide range of copolymer compositions [965]. The immiscibility of fully hydrolyzed PVOH was attributed to the hydroxyl self-association dominating the competing hydroxyl-amide association. PVOH blends with sodium polystyrene sulfonate gave flexible, transparent films with good electrical conductivity [966]. Phase separation of PVOH/PEO [967] and PVOH/hydroxypropylmethyl cellulose blends [968] has been reported. PVOH/polyethyleneimine blends have been studied for membrane separations involving isomer separation [969]. PVOH/poly(ethyl oxazoline) blends have noted in a series of patent applications related to proton-conducting membranes [970]. 

Masci and co-workers [9] characterised block copolymers of N-isopropyl acrylamide with dimethyl acrylamide or 3-sulfopropyl methacrylate by HPLC, gel permeation chromatography (GPC) and MALDI-ToF-MS. Data are provided on the reaction conditions, kinetic data, M and polydispersities for the polymers and copolymers. 

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