SODIUM METHACRYLATE COPOLYMER

Figure 4. Plot of q4I(q) vs. q4 for the 7.2% styrene-sodium methacrylate copolymer...

FTIR was used to examine specific interactions contributing to the partial miscibility in blends of styrene-sodium methacrylate copolymer andPEO. From the shifts of carboxylate ion and ether group stretching bands, an important specific interaction was found involving ion-dipole bonding between the ionic group in styrene... 

Notice the difference in word order between the CA Index name of this modified copolymer and that of the unmodified ethylene-sodium methacrylate copolymer 2-propenoic acid, 2-methyl-, sodium salt, polymer with ethene. 

Acrylamide copolymers designed to reduce undesired amide group hydrolysis, increase thermal stability, and improve solubility in saline media have been synthesized and studied for EOR applications. These polymers still tend to be shear sensitive. Acrylamide comonomers that have been used include 2-acrylamido-2-methylpropane sulfonate, abbreviated AMPS, (1,321-324), 2-sulfo-ethylmethacrylate (325,326), diacetone acrylamide (324, 326), and vinylpyrrolidinone (327,328). Acrylamide terpolymers include those with sodium acrylate and acrylamido-N-dodecyl-N-butyl sulfonate (329), with AMPS and N,N-dimethylacrylamide (330), with AMPS and N-vinylpyrrolidinone (331), and with sodium acrylate and sodium methacrylate (332). While most copolymers tested have been random copolymers, block copolymers of acrylamide and AMPS also have utility in this application (333). 

Thermally reversible gels based on NIPA polymers and copolymers of N,N-diethylacrylamide and sodium methacrylate collapsed abruptly upon heating at 33 °C and 55 °C, respectively [69]. These materials could be used in separation processes. Collapsed gel samples were added to a solution which contained a protein or other macromolecule and various small solutes. The gel... 

Fig. 8. Dependence of the correction factor 4> °n mole fractions of sodium methacrylate xMNa, of COO ions xcoo- and of salt I, x, respectively ( ) copolymers of A Am and MNa, (O) variously aged samples of PAAm, (O) copolymers of A Am and salt I. From Ref. [13]. ...

Fig. 9. Dependence of the extent of the collapse A and critical values of the interaction parameter Xc on the effective degree of ionization for networks of the copolymer AAm with sodium methacrylate xMN> ( ) variously aged PAAm networks

Fig. 12. Dependence of the A log X and of the critical acetone concentration at collapse ac on the mole fraction of salts xs (O) networks with salt I, ( ) networks with salt II, (A) networks with salt III, (A) networks with salt IV, ( ) networks of copolymers AAm with sodium methacrylate. Taken from Ret [48]...

On the basis of the profound difference in copolymer composition from a free radical or cationic type polymerization, it was stated that the sodium and potassium initiated polymerizations were carbanionic in nature. This has been one of the strongest arguments in favor of the anionic nature of the sodium and potassium polymerizations. The authors also suggested that the composition of a styrene-methyl methacrylate copolymer might be used as a criterion of the type of propagation induced by a given initiator. 

Popov. K.. Production of new polymer products with flocculating properties by the Mannich amino methylation of prehydiolized ternary acrylonitrile-methyl methacrylate-sodium vinylsulfonate copolymers. Tr. Vo-dosnahdyavane, Kamliz. Sanil. Tekh., 12, 119, 1977 Chem. Absir., 87, 18.5004, 1977. 

Table Dependence of adsoiption area (0 ) on surface polarity for adsorption of sodium dodecyl sulfate on styrene-methyl methacrylate copolymers at 22 °C [80]...

Acryloyloxypropyl) trimethoxysilane. See 3-Acryloxypropyltrimethoxysilane Acrysol 22 Polymer. See Acrylates/steareth-20 methacrylate copolymer Acrysol 33 Polymer. See Acrylates copolymer Acrysol 8306. See Sodium polyacrylate Acrysol ASE-60. See Acrylates copolymer Acrysol ASE-75. See Polyacrylic acid Acrysol ASE-95. See Acrylates copolymer Acrysol E2961, Acrysol G-110. See Ammonium polyacrylate Acrysol GS, Acrysol HV-1. See Sodium polyacrylate... 

Aculyn 22. See Acrylates/steareth-20 methacrylate copolymer Aculyn 28. See Acrylates/beheneth-25 methacrylate copolymer Aculyn 33. See Acrylates copolymer Acumer 1000. See Sodium polyacrylate Acumer 1020. See Polyacrylic acid Acumer 1050, Acumer 1100, Acumer 1110. 

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