Butylacrylate copolymer

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

Figure 6. Chromatogram of a 90 10 methylmethacrylate butylacrylate copolymer. Conditions - 2M SB-biphenyl 30 development column, 0.25um film thickness. Program - 100 atm for 3 min ramped to 415 atm at 10 atm/min. Column temperature - 80°C Detector temperature - 325°C.

The introduction of rubber particles increases the fracture energy of the networks at room temperature, but also decreases the temperature of the ductile-brittle transition (Van der Sanden and Meijer, 1993). This ductile-brittle transition is strongly dependent on the nature (and Tg) of the rubber-rich phase and the amount of rubber dissolved in the matrix. The lowest ductile-brittle transition is obtained with butadiene-based copolymers (Tg — 80°C), compared with butylacrylate copolymers (Tg —40°C). 

Chem. Descrip. Aqueous dispersion of styrene/n-butylacrylate copolymer (50%), emulsifier... 

The modulus and strength of PNCs reinforced with whiskers compares favorably with composites reinforced with glass and aramid fibers, aluminum, and magnesium aUoy [32, 42]. At a cellulose whisker concentration of 6wl%, high increases in modulus and elongation at break have been obtained for polystyrene-butylacrylate copolymer matrix composites [5j. 

DPC has in recent years been applied to studies on a range of photopolymers including DF 2000 photopolymer [5], cinnamoylphenyl methacrylate-glycidyl methacrylate copolymer [6], multiethylene glycol dimethacrylate [7], Ebecryl 270 (aliphatic urethane diacrylate) 1,6-hexanediol diacrylate (Darocur 1173 2-hydroxy-2-methyl-phenylpropan-l-one) [8], epoxy acrylates [9], epoxy vinyl ether formulations [10], polyacrylates, maleimides, and vinyl ethers [11], hydroxylated poly(imides) [12], and polystyrene-poly(n-butylacrylate) copolymers [13]. 

Odeberg and co-workers [13] demonstrated grafting reactions in polystyrene-poly(n-butylacrylate) copolymers using Fourier transform infrared spectroscopy and proton neutron magnetic resonance spectroscopy. DMA and TMA are used to study crosslinking. 

By combining Raman imaging with photoacoustic FT-IR and FT-IR microscopy three-dimensional maps of the heterogeneous degradation of epoxy and polyurethane films exposed to UV and water vapor were obtained [241]. Similarly, the phase separation in styrene/butylacrylate copolymers and latex films were analyzed [242]. Blakey and George used point illumination Raman mapping to investigate the surface of photooxidized PP with a lateral resolution of 1 im and successfully mapped the distribution of both oxidation products (Q ,/3-unsaturated ketones) and catalyst residues [239]. The distri-... 

Low molecular weight polybutadiene and butadiene-acrylonitrile copolymers terminated with carboxyl, vinyl, amine, epoxy, phenol, and hydroxyl groups have been widely used as toughening agents both for epoxy and polyester resins. Thermally reactive isoprene-acrylonitrile and ethylacrylate-butylacrylate copolymers have also been used [82,83]. 

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