Small-angle neutron scattering polyisoprene

Miyamoto, N., Yamauchi, K., Hasegawa, H., et al., 2006. Aggregation behavior of polyisoprene chain ends during living anionic polymerization as investigated by time-resolved small-angle neutron scattering. Physica B 385, 752-755. 

Yurekli, K., and R. Krishnamoorti. 2004. Thermodynamic interactions in blends of poly(4-tert-butyl styrene) and polyisoprene by small-angle neutron scattering. /. Polym. Set. Part B Polym. Phys. 42 3204-3217. 

The presence of CO2 in UCST polymer blends has been shown to enhance blend miscibility. Walker et al. [136] observed a depression of the cloud point temperature for low-molecular-weight blends of polystyrene/polyisoprene using a combination of visual inspection, small-angle neutron scattering, and spectrophotometry. In the presence of 13.8 MPa of CO2, a reduction of the cloud point was observed compared to the same system in the absence of SCCO2. This demonstrates the ability of CO2 to promote miscibihty in UCST blends, and consequently an increase in the processing window is available. Walker et al. [137]... 

Small-angle neutron and x-ray scatterings were combined with electrochemical measurements for PA-enriched polyisoprene copolymers in order to understand the differences in oxidation-reduction properties and charge storage in the copolymer as compared with the behavior of separate homopolymers [121]. Microphase separation to micelle-like structures with the polyacetylene component surrounded by a nonoxidizable polyisoprene occurs in a solution, in electrodeposited films, and in solvent-cast films and affects the electrochemistry and the netics of charge storage. Electrodeposition of the copolymers is a possible route of copolymer separation from the mixed homopolymer. 

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