Ethylene butylacrylate

Table 4.24 Ethylene-butylacrylate copolymers and ethylene terpolymers examples of properties...

Ethylene-acid and ethylene-ester copolymers, e.g. Ethylene-ButylAcrylate... 

Atactic poly(methyl methacrylate) Atactic polystyrene Butyl-rubber Chlorinated polyethylene Deuterated high density polyethylene Ethylene butylacrylate Elastomeric copolymer from ethylene and ethyl acrylate Elastomeric terpolymer from ethylene, propylene and a non-conjugated diene Elastomeric ethylene-propylene... 

The impact modification of aliphatic PAs has been known for a long time. Impact modifiers for PPA are acrylic polymers composed of ethylene, -butylacrylate, acrylic acid, and maleic anhydride. Other types of impact modifiers are ethylene-propylene rubbers, grafted withmaleic anhydride [28]. 

For example, by using an ethylene-butylaciylate-methaciylic acid ionomer (Pj) in combination with an ethylene-butylacrylate-glycidyl methacrylate (E-BA-GMA) terpolymer (P2), a grafting or cross-linking reaction between the two elastomers via the carboxyl/epoxide addition reaction (Eq. 19.6) is expected to take place during the melt blending with the polyamide. 

FIGURE 6.4 LOI versus zeolite level in a technical ethylenic terpolymer (ethylene-butylacrylate-maleic anhydride, Lotader P3200 from Elf-Atochem). The additive level is kept constant at 30 wt%, and the synergistic effect exhibits a maximum at 1.5 wt% 4A... 

The addition of comonomers during the polymerization enables a higher flexibility compared to PVAc-homopolymerizates. This results in a lower glass transition temperature and a lower minimum temperature of the film formation. Possible comonomers are acrylic acid esters (butylacrylate, 2-ethylhexylacrylate), dialkylfumarates, ethylene and others. 

There are various speciality polyethylene copolymers developed from ethylene and acrylic acid, methylacrylate, butylacrylate, ethylacrylate, maleic anhydride, glycidyl methacrylate, acrylic esters, acrylic ester-maleic anhydride. .. 

Chen [4] prepared a bimodal terpolymer poly(ethylene-co-n-butylacrylate-co-methacrylic acid) that was converted into a sodium salt and used as a component in gold balls. 

E-BA-CO E-VAc-CO (Ethylene-n-butylacrylate-carbon monoxide ethylene-vinylacetate-carbon monoxide)... 

The activation of benzene by 171 has also been reported in the presence of tert-butylacrylate, in this case affording Tp Rh(C6H5)(CH2CH2C02 Bu) (326), believed to arise from alkene insertion into the intermediate rhodium hydride Tp RhH(C6H5)(f/ -CH2 = CHC02 Bu). It is also reported that irradiation of 173 in ether/P(OMe)3 yields Tp RhH(OEt) P(OMe)3) (327), presumed to result from P(OMe)3 intercepting the initial photoproduct Tp Rh , with subsequent oxidative addition of an ethereal C-O bond and loss of ethylene. ... 

Poly(ethylene glycol)-block-poly(butylacrylate), synthesized by radical polymerization, were obtained by PTC in the Williamson reaction. The morphology and the crystallinity of the cast film of the block polymer were significantly affected by the organic solvent. 

Ahn et al. reported [62] preparation of a smetic hquid crystalline elastomer with shape memory properties. Shape memory polymeric materials can recover their equilibrium, permanent shapes from nonequilibrium, temporary shapes as a result of external stimuli, like heat or light. Such materials have apphcation in medical practice. Main-chain polynorbomenes were linked with three different side-chains, cholesterol, poly(ethylene glycol), and butylacrylate. 

One example of UV nanoimprint resists is shown in Figure 4.9. The resin contains three kinds of acryl monomers t-butylacrylate, ethylene glycoldiac-rylate, and (3-acryloxypropyltristrimethylsiloxy)silane. The resist also contains a photoinitiator, 2-hydroxy-2-methyl-l-phenylpropane-l-on. The resin... 

Ethylene-n-ButylAcrylate (EBA) Copolymers. EBA copolymers are also widely blended with olefin homopolymers to improve impact strength, tonghness, and heat sealability and to promote adhesion. The polymerization process and resnltant repeat unit of EBA are shown in Fig. 2.23. 

PEST, PC, and an ethylene-acrylic acid-butylacrylate High impact strength moldable compositions Portugall et al. 1984... 

In a typical formulation, an ethylene-n-butylacrylate-carbon monoxide (60/30/ 10) terpolymer (60 wt%) is melt compounded in a twin-screw extmder with PVC (30 wt%) along with an optional, nonvolatile plasticizer such as trioctyl trimellitate (10 wt%) such that the ethylene terpolymer dispersion was cured in situ during the mixing by catalytic amounts of a suitable peroxide (0.3 %) and a bismaleimide crosslink promoter (0.2 %). It is believed that the initial homogeneous miscible melt blend later forms the micro phase-separated mbber domains as the selective rubber cross-Unking progresses. Currently, such TPV blends are commercially sold as Alcryn melt-processable rubbers by Advanced Polymer Alloys division of Ferro. 

Durmaz, H., Karatas, F., Tunca, U., and Hizal, G. (2005) Preparation of ABC miktoarm star terpolymer containing poly (ethylene glycol), polystyrene, and poly(tcrt-butylacrylate) arms by combining Diels-Alder reaction, atom transfer radical, and stable free radical polymerization routes. Journal of Polymer Science Part A-Polymer Chemistry, 44,499-509. 

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