Poly methyl methacrylate-co butyl

Figure 3. Time dependence of the fraction R of unreacted aminostyrene residues during acetylation by 0.14 M acetic anhydride at 30°C. Methyl methacrylate copolymer in acetonitrile solution (0) linear poly-(methyl methacrylate-co-butyl methacrylate) swollen with acetonitrile Cd) methyl methacrylate copolymer crosslinked with 1 mole% ( ) and with 15 mole% ( ) ethylene dimethacrylate poly(methacrylate crosslinked with 3 mole% ethylene dimethacrylate containing entrapped poly(methyl acrylate-co-aminostyrene) ( ).

In ASA terpolymer acrylic acid brings more flexibility and the material has very good mechanical properties and weather resistance. For these reasons ASA is extensively used in automotive industry and in the fabrication of various appliances. Even more frequently than acrylic acid itself, various acrylates are used in copolymers. Among these can be mentioned the copolymers of acrylic acid esters with methacrylic acid esters such as poly(methyl methacrylate-co-methyl acrylate), poly(methyl methacrylate-co-ethyl acrylate), poly(methyl methacrylate-co-butyl acrylate), poly(ethyl methacrylate-co-ethyl acrylate), poly(acrylonitrile-co-methyl acrylate), poly(alkyl acrylate-co-methyl methacrylates), and poly(alkyl acrylate-co-hydroxyethyl methacrylates) where alkyl can be methyl, ethyl, butyl, etc. Some literature information regarding thermal decomposition of copolymers including acrylic acid and acrylic acid esters is given in Table 6.7.8 [6],... 

Although there are notable exceptions as given below, the most common lipase-catalyst used for polyester synthesis is Candida antarctica lipase B (CALB) (please refer to Chapter 14 for more information on the structure and reaction mechanisms of CALB). The immobilized CALB catalyst that has been primarily used is Novozym 435, manufactured by Novozymes (Bagsvaerd, Denmark). Novozym 435 consists of CALB physically adsorbed within the macroporous resin Lewatit VPOC 1600 (poly[methyl methacrylate-co-butyl methacrylate], supplied by Bayer) (please refer to Chapter 3 for more information on Novozym 435). 

PVC blends with CPE were patented and commercialized in 1956 as Hostalit . Blends with CSR soon followed. By the mid-1970 the emphasis shifted toward blends with acrylic elastomers. Ternary alloys were developed, viz. of PVC with CPE, and poly(methyl methacrylate-co-butyl acrylate) (MMBA) [Mamyama et al., 1977] or PVC, CPVC, and either MABS or a mixture of PMMA with imidized-PMMA or imidized-SMA [Soby et al.,... 

Polymer (B) poly(methyl methacrylate-co-butyl methacrylate) 2005ESE... 

Many investigators have studied polymer surfaces for years [74,75] and have been successful in determining combinations of two or more valence states [76,77] by the mathematical process of deconvoluting the peak assignments [78]. It was only recently that latexes were examined by ESCA. Davies et al. [79] prepared a series of homopolymers of poly(methyl methacrylate) (PMMA) and poly(butyl methacrylate) (PBMA), and also poly[(methyl methacrylate)-co-(butyl methacrylate)] (PMMA-PBMA), by surfactant-free emulsion polymerization. It was found that the surface of the latex film was rich in PMMA, which may possibly be explained by the reactivity ratios for the MMA/BMA system (ri = 0.52 and rj = 2.11) [80], Recently, Arora et al. carried out angle-dependent ESCA studies on a series of films prepared from core-shell ionomeric latexes (with a polystyrene core and a styrene/n-butyl acrylate/ methacrylic acid copolymer shell) to determine the distribution of carboxyl groups in the films [81,82]. 

Synonyms Butyl methacrylate, methyl methacrylate polymer Methacrylic acid, butyl ester, polymer with methyl methacrylate Poly (butyl methacrylate-co-methyl methacrylate) Poly (methyl methacrylate-co-butyl methacrylate) 2-Propenoic acid, 2-methyl-, butyl ester, polymer with methyl 2-methyl-2-propenoate... 

Poly (methyl methacrylate-co-butyl methacrylate). See Methyl methacrylate/butyl methacrylate copolymer Polymethylmethacrylate/poly (trimethoxysilylpropyl) methacrylate copolymer CAS 26936-30-1... 

Second virial coefficient of poly(methyl methacrylate-co-butyl acrylate)... 

The Pawlisch model [63] was applied, for example, to calculate the partition coefficient and diffusion coefficients of a series of solvents in PMMA-co-BMA (poly(methyl methacrylate-co-butyl methacrylate)) at infinite dilution [66]. Values of K and Dp that best fitted the experimental data were found, and the model predicted perfectly the system behavior. The Vrentas-Duda free volume theory was found to correctly correlate diffusion data above Tg. 

Eser, H. and Tihminlioglu, F. (2005) Solubility and diffusivity of solvents and nonsolvents in poly(methyl methacrylate co butyl methacrylate). Fluid Phase Equilib., 237, 68-76. 

Figure 17.8. TIRTS spectra of 3-mm-thick poly [(methyl methacrylate-co(butyl methacrylate)] samples moving at 40.8 cm s The bulk temperature of these samples was 23° C. The percent methyl methacrylate was (top to bottom) 100.0, 93.1, 85.7, 77.8, 69.2, 60.0, 50.0, 39.1, 27.3, 14.3, and 0%. (Reproduced from [8], by permission of the American Chemical Society copyright 1990.)...

Y. Luo, J. Guo, C. Wang, D. Chu, Quatemized poly(methyl methacrylate-co-butyl acrylate-co-vinylbenzyl chloride) membrane for alkaline fuel cells, J. Power Sources, 195 (2010)3765-3771. 

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