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From Random Coil to Extended Nanocylinder: Dendrimer Fragments Shape Polymer Chains
Author(s) -
Frey Holger
Publication year - 1998
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19980904)37:16<2193::aid-anie2193>3.0.co;2-r
Subject(s) - dendrimer , random coil , electromagnetic coil , polymer , chain (unit) , polymer science , materials science , polymer chemistry , chemical physics , chemistry , composite material , crystallography , physics , engineering , electrical engineering , astronomy , circular dichroism
Wedgelike dendrimer fragments , “dendrons”, attached to linear polymers as side groups, can be used to create anisotropic “nanocylinders”, leading to uncoiling and extension of the polymer chains. Synthetic macromolecules of this type can be visualized directly on surfaces and their contour length determined from scanning force micrographs. Unexpected acceleration effects in the polymerization of dendron monomers as well as the structural consequences of dendritic “pieces of cake” (shown schematically) on linear polymer chains are discussed.