N-dodecyl methacrylate

Dodecylhexadecanol. See Dodecyihexadecanoi Dodecyl methacrylate n-Dodecyl methacrylate Dodecyl 2-methyl-2-propenoate. See Lauryi methacrylate... 

CAS 142-90-5 EINECS/ELINCS 205-570-6 Synonyms Dodecyl methacrylate n-Dodecyl methacrylate Dodecyl 2-methyl-2-propenoate Methacrylic acid dodecyl ester 2-Methacrylic acid dodecyl ester Methacrylic acid lauryl ester Definition Ester of lauryl alcohol and methacrylic acid Empirical C16H30O2 Formula CH2=C(CH3)COOC,2H25... 

Dodecyl methacrylate n-Dodecyl methacrylate. See Lauryl methacrylate Dodecyl 2-methylpropanoate. See Dodecyl isobutyrate... 

Ueda et al. conducted a systematic study involving the copolymerization of MPC with other vinyl compounds by conventional radical polymerization. Typically, when the MPC was copolymerized in solution with styrene (St) and various alltyl methacrylates such as n-butyl methacrylate (BMA, forming PMB), f-butyl methacrylate (t-BMA), n-hetyl methacrylate (HMA, forming PMH), n-dodecyl methacrylate (DMA, forming PMD), or n-stearyl methacrylate (SMA, forming PMS), the polymerization progressed very well, and a statistically random sequence was obtained. The radical copolymerization of MPC (Ml) and St (M2) in ethanol resulted in the following copolymerization parameters monomer reactivity ratio for Mi and M2 are ri = 0.39, V2 = 0.46, respectively. Also, the Qi and values of the MPC are calculated as Qi = 0.76 and e-i = + 0.51, respectively. In addition, for an MPC (Mi) and MMA (M2) system, the monomer reactive ratio values are ri = 1.61, r2 = 0.66. 

Buback M, Muller E, Russell GT. SP-PLP-EPR smdy of chain-length-dependent termination in free-radical polymerization of n-dodecyl methacrylate, cyclohexyl methacrylate, and benzyl methacrylate evidence of composite behavior. J Phys Chem A 2006 110 3222-3230. 

Figure 7.20 Relaxation time spectra H(ln t) for poly-n-dodecyl methacrylate (PDM), poly-n-octyl methacrylate (POM), poly-n-hexyl methacrylate (PHM), poly-n-butyl methacrylate (PBM), polyethyl methacrylate (PEM). Dashed lines are a slope of—j predicted by the Rouse theory. (Adapted from Ferry, j.D. (1980) Viscoelastic Properties of Polymers, 3rd edn, John Wiley Sons, New York, Ch. 11. Copyright (I960) John Wiley Sons, Inc.)...

Poly(n-dodecyl methacrylate)-Wocfc-poly(ethyl methacrylate) ... 

When the water structure in the hydrated polymers was examined using the differential scaiming calorimetric technique, it was found that a large amount of free water existed in the MPC polymers [poly(MPC-co-BMA) and poly(MPC-co-n-dodecyl methacrylate (DMA) with 30 unit mol% of MPC] compared with that in poly(HEMA), poly(aciylamide-co-BMA) (PAM), poly(sodium 2-methyl-2-acrylamide propane sulfonate-co-BMA) (PAMB), and poly(N-vinyl pyrrolidone-co-BMA) (PVB) °. 

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). 

In addition to MMA, a variety of methacrylic esters were polymerized rapidly to the corresponding polymers with narrow MWDs in the presence of methylaluminum bis(2-ferf-butyl-4-methoxyphenolate) (3c). The successful examples include ethyl methacrylate (EMA), isopropyl methacrylate ( °PMA), n-butyl methacrylate ("BMA), isobutyl methacrylate ( °BMA), benzyl methacrylate (BnMA), and dodecyl methacrylate (Cj2MA), where the Mn values were all close to the predicted values (Mn j ) with the Mw/Mn ratios below 1.1 (Table 3, runs 1-4,6,7). The polymerization of ferf-butyl methacrylate ( BMA) is the only exception, where the monomer conversion hardly increased even after 24 h. 

Materials. Methyl methacrylate (MMA) and methacrylic acid (MAA) monomers (Rohm and Haas), and n-dodecyl mercapten (Eastman Kodak Co.) were purified by vacuum distillation under nitrogen atmosphere to remove the inhibitor. Distilled-deionized and deoxygenated water was used in all polymerizations. Sodium lauryl sulfate (99% Onyx Maprofix 563) and Triton X-100 nonionic surfactant (Rohm and Haas), and potassium persulfate initiator (Fisher Scientific Co.) were used as received without further purification. 

Acrylic acid Acrylonitrile n-Butyl acrylate n-Butyl methacrylate 4-Chlorostyrenc Divinyl benzene Dodecyl methacrylate Ethyl acrylate Ethylene dimethacrylate... 

Figure 11.6 Double logarithmic plot showing the relaxation spectrum in the transition zone for six methacrylate polymers reduced to 100°C. E, B, H, O, DD, and 2-EB refer to ethyl, -butyl, -hexyl, -octyl, n-dodecyl and 2-ethyl butyl, respectively. Dash lines represent the portions of the spectra where the slope is —1/2 (From Ref. 18.)...

VIE Vieira, N.A.B., Neto, J.R., and Tiera, M.J., Synthesis, characterization and solution properties of amphiphilic V-isopropylaciylamide-poly(ethylene glycol)-dodecyl methacrylate thermosensihve polymers. Colloids Surfaces A, 262, 251, 2005. 

Lauryl mercaptan n-Lauryl mercaptan. See n-Dodecyl mercaptan Lauryl methacrylate... 

Sodium 2-(dodecyloxy)-2-oxoethane-1 -sulfonate. See Sodium lauryl sulfoacetate Sodium dodecyl sulfate Sodium n-dodecyl sulfate. See Sodium lauryl sulfate Sodium DTPA. See Pentasodium pentetate Sodium DVB/acrylates copolymer Definition Sodium salt of a polymer of divinyl benzene and one or more monomers consisting of acrylic acid, methacrylic acid, or their simple esters... 

Flynn, C. E., J. W., Goodwin, Association of Aciylamide-Dodecyl-methacrylate Copolymers in Aqueous Solution, in Polymers as Rheology Modifiers, Schulz, D. N., Glass, E. J., Eds., ACS Symposium Series No. 462, American Chemical Society, Washington, DC, 1991, pp. 190-206. 

FIG. 12-1. Storage modulus plotted against frequency reduced to 100°C for six methacrylate poly-mers.5- (E) Ethyl (B) -butyl (H) -hexyl (O) -octyl (DD) n-dodecyl (2-EB) 2-ethyl butyl. 

MA, methyl acrylate BA, butyl acrylate DA, dodecyl acrylate VAc, vinyl acetate S, styrene B, butadiene MAA, methacrylic acid MMA, methyl methacrylate nBMA, n-butyl methacrylate /BMA, /so-butyl methacrylate EHMA, 2-ethyhexyl methacrylate DMA, dodecyl methacrylate HEMA, 2-hydroxyethyl methacrylate GMA, glycidyl methacrylate MAN, methacrylonitrile S, styrene... 

The methacrylic backbone structure makes the spherical Toyopearl particles rigid, which in turn allows linear pressure flow curves up to nearly 120 psi (<10 bar), as seen in Fig. 4.45. Toyopearl HW resins are highly resistant to chemical and microbial attack and are stable over a wide pH range (pH 2-12 for operation, and from pH 1 to 13 for routine cleaning and sanitization). Toyopearl HW resins are compatible with solvents such as methanol, ethanol, acetone, isopropanol, -propanol, and chloroform. Toyopearl HW media have been used with harsh denaturants such as guanidine chloride, sodium dodecyl sulfate, and urea with no loss of efficiency or resolution (40). Studies in which Toyopearl HW media were exposed to 50% trifluoroacetic acid at 40°C for 4 weeks revealed no change in the retention of various proteins. Similarly, the repeated exposure of Toyopearl HW-55S to 0.1 N NaOH did not change retention times or efficiencies for marker compounds (41). 

VCL N-vinylcaprolactam, SDS sodium dodecyl sulphate, MACUE042 polyethylene oxide)42 undecyl a-methacrylate, KPS potassium persulphate, VA-086 2,2 -azobis [ 2-methyl-N-(2-hydroxye thyl) propionamide ]... 

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