ИСТИНА

This study is devoted to the polymer brushes of macromolecules with amphiphilic A-graft-B monomer units. It was found that such brushes, depending on the solvent selectivity towards the backbone A or side B groups, could form the ultra-thin layers [1], having width about two-monomer size, the strands of few chains which are perpendicular to grafting surface [2], the lamellae with different domain spaces [3] and so-called parking garage structure [3]. The term "parking garage structure" was introduced recently to describe structures of rough endoplasmic reticulum having helicoidal connections between adjacent sheets [4]. In case under consideration, the parking garage structure joins together the lamellae with large (on the top of brushes) and small (close to grafted surface) domain spacing. The parallel ordering of lamellae and smooth connections between them justify comparison of such systems with parking garage structure.