Poly -ethylene-vinyl acetate

Chattopadhyay S., Chaki T.K., and Bhowmick A.K., New thermoplastic elastomers from poly(ethyle-neoctene) (engage), poly(ethylene-vinyl acetate) and low-density polyethylene by electron beam technology structural characterization and mechanical properties. Rubber Chem. TechnoL, 74, 815, 2001. Roy Choudhury N. and Dutta N.K., Thermoplastic elastomeric natural rubber-polypropylene blends with reference to interaction between the components. Advances in Polymer Blends and Alloys Technology, Vol. 5 (K. Finlayson, ed.), Technomic Publishers, Pensylvania, 1994, 161. 

S.E. Barnes, E.C. Brown, M.G. Sibley, H.G.M. Edwards and P.D. Coates, Vibrational spectroscopic and ultrasound analysis for the in-process monitoring of poly(ethylene vinyl acetate) copolymer composition during melt extrusion, Analyst, 130, 286-292 (2005). 

Figure 12.14 Release of the antibiotic drug chloramphenicol dispersed in a matrix of poly(ethylene-vinyl acetate). The solid line is calculated from Equation (12.10) [21]...

FIGURE 6.17 Normalized release of chloramphenicol from poly(ethylene-vinyl acetate) matrices. [Graph reconstructed from data by Baker et al. in Controlled Release Pesticide Symposium, N. Cardarelli (Ed.), University of Akron, Akron, OH, 1974, p. 40.1.]... 

Poly(hydroxyethyl methacrylate) Poly(ethylene/vinyl acetate) Poly(ethylene/vinyl alcohol)... 

Silicone mbber, especially poly dimethyl siloxane (Silastic) Silicone-carbonate copolymers, Surface-treated silicone mbbers Poly (ethylene-vinyl acetate), Polyethylene, Polyurethane (Walopur)... 

Since the 1950s, most implants have been fabricated from nonbiodegradable, inert polymers such as silicone rubber, polyacrylamide and poly(ethylene-vinyl acetate) copolymers. However, some fundamental limitations of such implants include ... 

Which one of the following polymers undergoes homogeneous bulk erosion (a) Poly(lactide-co-glycolide) (b) Poly[bis(p-carboxyphenoxy)propane sebacic acid) (c) Poly(ortho esters) and/or (d) Poly(ethylene-vinyl acetate). 

The topographical AFM images of poly(ethylene vinyl acetate) films with various thicknesses ranging from 20 to 460 nm are shown in Fig. 33 [80]. The bulk-like spherulites are seen in the 460-nm film. In thick films, the surface morphology of the film is very similar to the bulk. As the thickness decreases to 152 nm, more small spherulites are observed. This is possibly due to the... 

Determining vinyl acetate distribution in two poly(ethylene vinyl acetate) copolymers is a good illustration using the liquid chromatography-transform interface. Two samples were used, one with reported high vinyl acetate content and the other low. Both were made in an unbaffled autoclave with a single vinyl acetate injection point and are typical of copolymers used in heavy wall plastic bags. 

Although glass containers are very suitable for Hb packaging, flexible plastic containers constructed from materials such as poly(ethylene-vinyl acetate) (EVA) are most widely used. The plastic packaging material must be carefully selected. Hemoglobin, like other proteins, is lipophilic and can facilitate extraction of low molecular weight lipophilic substances, such as the plasticizers used in poly(vinyl chloride) containers. 

Plastic bags or bottles are commonly used as containers for aqueous parenteral solutions. Plastic containers are most frequently composed of polyethylene, polypropylene or poly(vinyl chloride) (European Pharmacopoeia, 2002). More than 60% of the plastic containers for parenteral preparations are made of the polyolefins (Fischer, 2002). Containers made of poly(ethylene-vinyl acetate) (EVA bags) are suitable as containers for TPN preparations because they do not have added plasticizers,... 

Polymers Characterized by HT-GPC A number of polymers can be characterized by GPC in 1,2,4-trichlorobenzene at an elevated temperature polyethylene, polypropylene, poly(ethylene-vinyl acetate), poly(ethylene-methyl acrylate), polyethylene propylene diamine rubber, different types of butyl rubber, and poly(phenylene oxide). In Table 17.3 are presented some common polymers, as well... 

Abbreviations ABS, acrylonitrile-butadiene-styrene terpolymer PB, polybutadiene PC, polycarbonate PS, polystyrene PET, poly(ethylene terephthalate) PBT, poly(butylene terephthalate) SBR, styrene-butadiene rubber TEA, V-trifluoroacetylated polyamides PMMA, poly(methyl methacrylate) SAN, poly(styrene-acrylonitrile) SBS, poly(styrene-butadiene-styrene) PVA, poly(vinyl acetate) PVB, poly(vinyl butyral) PVC, poly(vinyl chloride) PDMS, poly(dimethyl siloxane) PE, polyethylene EVA, poly(ethylene-vinyl acetate) UHMWPE, ultra high molecular weight polyethylene PP, polypropylene. 

Improvements in the reduction of flammability of polymers with low clay contents and better processability have been reported, in addition to reductions in the concentration of toxic vapors produced in the combustion stage [116-120]. In connection to their flame-retardant properties, exfoliated nanocomposites based on PP [121, 122, 115, 123], PS [115, 123, 124], poly(ethylene-vinyl acetate) [125, 126], styrene-butadiene rubber [127], PMMA [128], polyesters... 

Poly (Ethylene-Vinyl Acetate) Latex EVAorVAE Pch2-ch2-ch2-ch- I... 

In particular, the commercial latexes widely used in the world are styrene-butadiene rubber (SBR), polychloroprene rubber (CR), polyacrylic ester (PAE) and poly(ethylene-vinyl acetate) (EVA) copolymers. Most commercial polymer latexes for cement modifiers contain proper antifoaming agents, and can be generally used without the addition of the antifoaming agents during mbcing. 

Polyvinyl alcohol Polyacryhc acid Water insoluble Ethylcellulose Polyethylene Polymethacrylate Polyamide(nylon) Poly (ethylene vinyl acetate) Cellulose nitrate Silicones Poly lactide-co-glycoUde Polyvinyl acetate phthalate... 

Research on the effect of monomer ratio in copolymer dispersions [e.g., SBR latex, poly (ethylene-vinyl acetate) (EVA) and poly (styrene-acrylic ester) (SAE) emulsions] on the strength of polymer-modified mortar using copolymer dispersions [21-23]... 

Shafiee, M. and Ramazani, S. A. A. 2008. Investigation of barrier properties of poly(ethylene vinyl acetate)/organoclay nanocomposite films prepared by phase inversion method. Macromolecular Symposia 274 1-5. 

Using field-based models, it is more difficult to provide information about the chain conformation on the surface however, attempts have been made to understand phase separation and mechanical properties of composites. Shou et al. combined SCF/DFT techniques with lattice spring model (LSM) to study the effects of the spatial distribution and aspect ratio of particles (rods and spheres) on the mechanical properties of the composite. Buxton and Balazs combined TDGL theory for polymer blends with BD for nanorods in the simulations of nanocomposites. i A percolating network of nanorods was identified in the minority phase of a bicontinuous structure. Clancy and Gates developed a hybrid model for CNTs in a bulk poly(ethylene vinyl acetate) matrix. Molecular structures of... 

The second complicating factor is that multiple injections of GnRHa are often required to sustain sufficient levels of gonadotropins in the plasma, which further complicates this technique for tuna. An effective alternative to the use of multiple injections is to administer a slow-release implant that can maintain elevated plasma levels of gonadotropins for long periods (Mylonas, 2002 Mylonas et al, 2007). In 2004 and 2005, an agonist of GnRH prepared within a matrix of poly[Ethylene-Vinyl Acetate] (EVAc) was... 

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