Methylmethacrylates poly

Werner (1980) Methylmethacrylate- poly(methylmethacrylate) <0.25 Twin-screw extruder Reduced pressure and elevated temperatures Independent of screw speed... 

Films cast from poly(methylmethacrylate), poly(vinylidenefluoride), polyfbutylmethacrylate), and poly(vinylchloride)... 

In an attempt to look for alternatives to the use of halogenated fire retardants, which function in the gas phase, an approach has been pursued which controls the polymer flammability by modifying the condensed phase chemistry. Silica gel combined with potassium carbonate have been reported to be an effective fire retardant for a wide variety of common polymers, such as polypropylene, nylon, poly(methylmethacrylate), poly(vinyl alcohol), cellulose, and to a lesser extent, polystyrene and styrene-acrylonitrile.49 The cone calorimeter data shown in Table 8.5 indicate that the PHHR is reduced by up to 68% without significantly increasing the smoke or carbon monoxide levels during the combustion. 

PE PEMA PEO PIP PMAA PMMA PMPS poly(ethylene) poly(ethyl methacrylate) poly(ethylene oxide) poly(isoprene) poly(methacrylic acid) poly(methylmethacrylate) poly(methylphenylsiloxane)... 

Yb(TPP)Tp] was blended with the polymers poly (methylmethacrylate), poly(Y-butylmethacrylate), and with poly(bisphenol-A-carbonate). Near-IR emitting polymeric light-emitting diodes (PLEDs) were fabricated by spin-coating of films of the [Yb(TPP)Tp]/polymer blends on ITO glass substrates. The best device characteristics concerning the near-IR irradiance and EL efficiency was obtained for the [Yb(TPP)Tp]/PMMA blend. Flexible PLEDs can be fabricated from the [Yb(TPP)Tp]/PBMA blend.214... 

By Their Availability. Many commercially available polymers such as poly (methylmethacrylate), poly(vinylchloride), Poly(ethylene terephthalate) (PET), and so on have been extensively studied in recent years [64], but they have several characteristics that make them unsuitable for high-quality structuring. The most prominent are low sensitivity, carbonization upon irradiation, and redeposition of ablation products on the polymer surface [65]. To improve the ablation properties for specific applications, polymers or polymer-absorber systems were designed to fit special requirements. The most important criteria for these doped and designed polymers for structuring are as follows ... 

Another major factor affecting the particle uptake is the nature of the material used to prepare the particles. Uptake of nanoparticles prepared from hydrophobic polymers seems to be higher than that from particles with more hydrophilic surfaces. Microspheres composed of polystyrene, poly(methylmethacrylate), poly(hydroxybutyrate), poly(D,L-lactide), poly(L-lactide), and poly(o,L-lactide-co-glycolide) were absorbed into the Peyer s patches of the small intestine, whereas those composed of ethyl cellulose, cellulose acetate hydrogen phthalate, and cellulose triacetate were not absorbed. Residual poly(vinyl alcohol) in the surface of PLGA nanoparticles significantly reduced the intercellular uptake, in spite of the smaller particle size." Similarly, poloxamer coating of... 

G.D. Fu, W.C. Wang, S. Li, E.T. Kang, K.G. Neoh, W.T. Tseng, D. J. Liaw, Nanoporous low-K polyimide films prepared from poly(amic acid)s with grafted poly(methylmethacrylate)/ poly(acrylamide) side chains, J. Mater. Chem. 13 (9)(2003) 2150-2156. 

Of relevance to this section, Reculusa et al. also recently demonstrated that the addition of a small amount (only 1.5 pmole/m ) of a monomethylether mono methylmethacrylate poly(ethylene oxide) macromonomer (structure 9, Table 4.5) allowed the direct self-assembly of nanometric polystyrene latex particles on the surface of submicronic sihca particles through an in-situ nucleation and growth process (Fig. 4.12) [102]. The two sets of particles were assembled in a raspberry-like morphology via the formation of hydrogen bonds at the interface of the inorganic and organic coUoids. The size and shape of the assembly can be easily controlled by varying the sizes and stoichiometries of the colloidal components (Fig. 4.13). 

With atomic force microscopy, Tong et al. compared the morphology of some poly(methylmethacrylate)-/ -poly(alkylacrylate)-/ -poly(methylmethacrylate) triblock copolymers, namely poly(methylmethacrylate)-fc-poly(isooctyl acrylate)-/ -poly(methylmethacrylate) (MIM), poly(methylmethacrylate)-fc-poly (n-butylacrylate)-/ -poly(methylmethacrylate) (MnBM), poly(methyhnethacrylate)-fc-poly(n-propylacrylate)-fc-poly(methyl methacrylate) (MnPM), and poly (methylmethacrylate)-/ - and poly(ethylacrylate)-/ -poly(methyhnethacrylate) (MEM), using a procedure designed to image microdomains of different mechanical properties. The amplitude and phase of the oscillating tip were recorded simultaneously at each point of the surface, with a lateral resolution of a few nanometers. 

Figure 2.102. Use of the derivative reversing heat capacity to study interfacial effects this figure shows the application of this method to poly(methylmethacrylate)-poly(vmyl acetate) (PMMA-PVAc), (50 50) latex film [from Song et al. (1999) reprinted with permission from Springer-Verlag],...

Methylmethacrylate Poly(methyl- methacrylates) Infiared spectroscq>y 235... 

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