Octadecene - maleic anhydride copolymers

Fig.1 Fibronectin anchorage strength in terms of time constant of double exponential fibronectin displacement kinetics (F = Fi exp[- kit] + F2 exp[- k2t]) on different maleic anhydride copolymer surfaces characterized by the density of anhydride functionalities and water contact angle (poly(octadecene-a/t-maleic anhydride)—POMA, poly(propene-fl/t-maleic anhydride)—PPMA, poly(ethylene-a/f-maleic anhydride)—PEMA)...

The property of the polymers in question to form nonspherical nanostructures was confirmed in experimental studies. Shih et al. [29] synthesized alternating copolymers of 1-alkenes with maleic anhydride. The maleic anhydride units were hydrolyzed to maleic acid units. Fully hydrolyzed macromolecules associated into microstructures of cylindrical and ellipselike shape. The cylindrical shape was characteristic of copolymers with octadecene and hexadecene moieties, while the copolymers with lower alkene copolymers (tetradecene, dodecene, decene, octene) formed ellipsoidal structures. Wataoka et al. [30] investigated the formation of nonspherical helices in a system of maltopentaose-carrying polystyrene (PS). The polymer was synthesized via the homopolymerization of vinylbenzyl maltopentaose amide (Scheme 3). 

The characteristics of the polymer substrates determined the availability and activity of the immobilized enzyme. The immobilization of subtilisin A onto highly swelling poly(ethylene-alt-maleic anhydride) (PEMA) copolymer films was found advantageous since it permitted higher enzyme loadings and total activities as compared with enzyme immobilization onto the compact hydrophobic poly(octadecene-alt-maleic anhydride) (POMA) copolymer films [125]. 

Poly (maleic anhydride-alt-1-octadecene). See Octadecene/MA copolymer Poly (maleic anhydride-methyl vinyl ether). See PVM/MA copolymer Polymannuronic acid. See Alginic acid Polymeg 650] Poiymeg 1000, Polymeg ... 

Materials studied include polyesters and polyethers [73], PMMA [74], star-shaped styrene block copolymers [75, 76], PC [77], isoprene-styrene graft copolymers [76], polyethylene oxide-maleic anhydride-vinyl methyl ether copolymers [78], polybutylene terephthalate [79], PE [80], (phenoxymethyl)thizrane [81], polytrimethylene carbonate [82], polybutylene succinate [83], polymethyldiundecenylsilane [84], poly(N-vinyl carbazole) [85], titanium-containing copolymers [86], styrene-macro zwitterion polymers [87], and poly(octadecene-alt-maleic anhydride) [88]. 

The numerous examples of extenders described in the patent literature include maleic anhydride-octadecene copolymers [55], carbodiimide extenders prepared by reacting isocyanates with isostearyl alcohol [53], and stearyl acrylate-2-hydroxyethyl methacrylate-Wmethylolacrylamide copolymers [54]. 

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