Octadecyl acrylate

Takafuji, M., Fukui, M., Ansarian, H.R., Derakhshan, M., Shundo, A., and Ihara, H., Conformational effect of silica-supported poly(octadecyl acrylate) on molecular-shape selectivity of polycyclic aromatic hydrocarbons in RP-HPLC, Anal. Sci., 20, 1681, 2004. 

Figure 7.1. Comparison of the cloud-point curves of poly(ethyl acrylate) (PEA), poly(butyl acrylate) (PBA), poly(ethylhexyl acrylate) (PEHA), and poly(octadecyl acrylate) (PODA) in C02. The overall polymer concentration is 5 wt % for each curve and the Mw of the polymer is given on each curve (Kirby and McHugh, 1999). The demarcations L + L and FLUID denote a two-phase and a one-phase region, respectively.

Carbon-13 spin-lattice relaxation times are measured for poly(octadecyl acrylate) above and below the melting point of the crystalline side chains. The behaviours of lithium ions in a polyether poly(urethane urea) (PEUU) were investigated by C MAS solid-state NMR. ... 

Jordan, E.F, Jr., Smith, S., Jr., Zabarsky, R.D., Austin, R. and Wrigley, A.N. (1978) Viscosity index. 11. Correlation with rheological theories of data for blends containing n-octadecyl acrylate. J. Appl. Polym. Sci. 22 1529-1545. 

Monomer. St, styrene MMA, methyl methacrylate AN, acrylonitrile NIPAAm, /V-isopropylacrylamide MAA, methacryhc acid NDEAMA, 2-diethylaminoethyl methacrylate MBAA, MW -methylene bisa-crylamide TRIM, trimethylolpropane trimethacrylate ODVE, octadecylvinyl ether ODA, octadecyl acrylate DMAAm, iV,iV-dimethylacrylamide PyMMA, 1-pyrenylmethyl methacrylate AnMMA, 9-an-thracenylmethyl methacrylate HDT, 1,6-hexane dithiol TEGDVE, triethyleneglycol divinyl ether HEMA, hydroxyethyl methacrylate AAm, acrylamide PEG-DA, poly(ethylene glycol) diacrylate PEG-TA, poly(ethylene glycol) tetraacrylate. 

Compatibility with the host polymer plays a principal role in application of oligomeric HAS [13,284]. This phenomenon was studied in PP doped with poly(2,2,6,6-tetramethyl-4-piperidyl acrylate-co-n-octadecyl acrylate) having Mn between 5000 and 116000. The light stabilizing effect diminished with increasing mol. wt. of the stabilizer [300]. 

Tests of the light stabilizing activity of monomeric HAS and the corresponding homo- and copolymers reveal mostly better properties of the monomers if physical persistence is not the decisive testing factor [8]. This was found e.g. in comparison of the functionalized urethane 182 and its copolymers with styrene or methyl methacrylate [303], The macromolecular architecture is expressed very distinctly. For example, a PP photografted HAS-functionalized acrylate was more efficient than the respective monomer or homopolymer. Another observation performed with A-(2,2,6,6-tetramethyl-4-piperidyl)methacry-lamide, piperidyl acrylate and methacrylate, their homopolymers and copolymers with dodecyl methacrylate and octadecyl acrylate revealed that the stabilizing effect in PP was in favour of copolymers [304]. Similar HAS-functionalized monomers were copolymerized with styrene. In this case, the copolymers were substantially less efficient in PS than the monomers. Masterbatches of PP-bound HAS prepared by reactive processing imparted a comparable effectivity as conventional HAS when tested at an equimolar basis [298]. 

Multi-step radical migration in propagating radicals of Octadecyl Acrylate... 

Poly(A/ -isopropylacrylairride-()-methyl methacrylate) Poly(A/ -isopropylacrylairride-co-A/-methyl-A/-vittylacetamide) Poly(A/ -isopropylacrylairride-co-octadecyl acrylate) Poly[A/ -isopropylacrylairride-co-oligo(ethylene glycol) monomethaciylate]... 

The major advantage for the usage of LCPs as stationary phases for LC applications is that coating of the polymer on the silica gel is a simple process. However, also comb-shaped polymers prepared by octadecyl-acrylate and 3-mercaptopropyltrimethoxysilane as chain transfer agent can be immobilized on silica gel by bonding. It was shown that the telomer behaves as nematic material in the range of 42-47°C. The separation of geometrical isomers could be achieved. ... 

Polymer (B) poly(octadecyl acrylate) Characterization M g.mol = 93.3, = 313, Aldrich Chem. Co., Inc., Milwaukee, WI Solvent (A) ethene C2H4 Solvent (C) octadecyl acrylate C21H40O2 Type of data cloud points 2002BY1 74-85- 4813-57-... 

BYU Byun, H.-S. and Choi, T.-H., Effect of the octadecyl acrylate concentration on the phase behavior of poly(octadecyl aciylate)/supercritical CO2 and C2H4 at high pressures, J. Appl. Polym. Sci., 86, 372, 2002. 

Ammonium persulfate A -Hexadecyl methacrylate Stearyl methacrylate A-Octadecyl acrylate 77-Octadecyl methacrylate Dococyl acrylate Initial monomer concentration Cetyltrimethylammonium bromide Cooperative diffusion coefficient Apparent diffusion coefficient Dynamic light scattering iV V-Dimethylacrylamide Dimethyl sulfoxide Tensile modulus... 

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