W-butyl methacrylate

Saillenfait AM, Bonnet P, Gallissot F, et ah Developmental toxicities of methacrylic acid, ethyl methacrylate, w-butyl methacrylate, and allyl methacrylate in rats following inhalation exposure. Toxicol Sci 50(1) 136-145, 1999... 

Figure 5.21 TEM images of poly(w-butyl methacrylate)-grafted MWCNTs with azido groups (MWCNT-Az-PnBMA) (a), MWCNTs grafted with both poly( -butyl methacrylate) and poly(ethylene glycol) brushes (MWNT-PnBMA-PEG) (b, c). (d) Cartoon for the local phase separation and assembly of amphiphilic polymer brushes into Janus polymer structures on CNTs as shown in (c) (marked by arrows), (e) Photograph of MWCNT-PnBMA-PEG dispersed in a mixed solvent of water (upper layer) and chloroform (bottom layer). Reprint with permission from Zhang et al...

Figure 3.1 Conversion versus time of w-butyl methacrylate, as determined by isothermal DSC. At 110°C the acceleration due to the gel effects is visible after 4 min.

Figure 4.5 Power law exponents as a function of shear rate for the polymerization of w-butyl methacrylate at 90°C.

Si02 Emulsion, 4-vinyl pyridine plus w-butyl acrylate or w-butyl methacrylate 398... 

The SANS technique was further adopted to study the partitioning of monomer between microemulsion droplets and polymer particles for various monomers (ST, w-butyl methacrylate, -butyl methacrylate, and CeMA) (34). It was found that, during microemulsion polymerization, the partitioning of monomer is strongly dependent on the composition of microemulsion, especially on the distance to the phase boundary in the pseudo three-phase diagram of the surfactant/cosurfactant-oil-water system. For example, the monomer partitioning is linear in nature and the concentration of monomer in polymer particles is quite low if the initial microemulsion composition is far away from the phase boundary. In contrast, the monomer partitioning is essentially nonlinear and the... 

Abbreviations PMMA, poly(methyl methacrylate) PDMS, poly(dimethyl siloxane) PS, polystyrene PCLP, polychloroprene PE, polyethylene PnBM, poly(w-butyl methacrylate) PVA, poly(vinyl acetate) PB, polybutadiene. 

Figure 6.8 C-NMR spectrum of isotactic poly-w-butyl methacrylate. Reproduced with permission from G.R. Quinting and R. Cai, Macromolecules, 1994,27, 22,...

Steady-state fluorescence spectroscopy has been used by Torkelson et al. [43,44] to determine the components glass transition temperature (Tg) in various blends, including blends of PS with poly(tert-butyl acrylate) (PtBA), PMMA, and poly(w-butyl methacrylate) (PnBMA) [43], as well as in miscible blends of pyrene-labeled PMMA (MPy-labeled PMMA) with poly(ethylene oxide) (PEO) or poly(vinyl chloride) (PVC) over a broad composition range [44]. In the particular case of this latter study [44], the blend Tg-values were measured upon heating by increasing the... 

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