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New Perspectives for the Design of Molecular Actuators: Thermally Induced Collapse of Single Macromolecules from Cylindrical Brushes to Spheres
Author(s) -
Li Chengming,
Gunari Nikhil,
Fischer Karl,
Janshoff Andreas,
Schmidt Manfred
Publication year - 2004
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/anie.200352845
Subject(s) - spheres , macromolecule , cylinder , actuator , content (measure theory) , polymer science , materials science , nanotechnology , chemistry , physics , computer science , mechanical engineering , engineering , mathematics , artificial intelligence , mathematical analysis , biochemistry , astronomy
Polymethacrylates with densely grafted poly‐ N ‐isopropylacrylamide side chains change their shape at the lower critical solution temperature from cylindrical brushes (left) to spherical structures (right). This is an interesting example of a temperature‐induced cylinder‐to‐sphere transition observed for single macromolecules.