Zschuppe, V.; Unger, R.; Donth, E.
Homogeneous crystal nucleation in the poly(ethylene oxide)/poly(methyl methacrylate)
system at low temperatures
Zschuppe, V.; Unger, R.; Donth, E.: Homogeneous crystal nucleation in
the poly(ethylene oxide)/poly(methyl methacrylate) system at low
temperatures
Acta Polymerica 39 (5) (1988) 257–260,
DOI: 10.1002/actp.1988.010390511.
Relative number densities of PEO crystal nuclei are calculated as a function of annealing temperature (< 260 K) and annealing time from subsequent isothermal (280 K) crystallization curves. These are obtained by DSC with two blends and one triblock copolymer of the poly(ethylene oxide)/poly(methyl methacrylate) (PEO/PMMA) system (which is anionically synthesized, PMMA is mainly syndiotactic). The results are discussed in terms of the early stages of phase decomposition in the 10 nm range. A stepwise change of the nucleus density in one blend is interpreted by a stepwise change of the (small) critical nucleus size as a function of temperature.