Copolymer segregation behaviour has been studied using the technique of neutron critical reflection from layered samples. Surface segregation occurs due to location at the air/polymer interface of a copolymer microphase-segregated layer. Similar microphase segregation by the copolymer occurs during mutual diffusion with the homopolymer. By comparison with theoretical predictions, this segregation is shown to exhibit behaviour characteristic of end-tethered polymer brushes.
Посилання на статтю:
Segregation behaviour of deuterated poly(styrene-block-methyl methacrylate) diblock copolymer in the presence of poly(methyl methacrylate) homopolymer / D. G. Bucknall* and J. S. Higgins and J. Penfold // Polymer. – 1993. – Vol 34. – P. 451-458.