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Tunable Thermoresponsive Polymeric Platforms on Gold by “Photoiniferter”‐Based Surface Grafting
Author(s) -
Benetti E. M.,
Zapotoczny S.,
Vancso G. J.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200601554
Subject(s) - materials science , photopolymer , grafting , polymer , shrinkage , lower critical solution temperature , chemical engineering , surface modification , polymer chemistry , nanotechnology , polymerization , composite material , copolymer , engineering
Thermoresponsive brushes with a tunable structure are grafted in a controlled way to gold substrates, exploiting an initiator–transfer–terminator agent (iniferter)‐based photopolymerization (see figure). The chain length of the polymers is controlled by using UV light as a trigger and the end groups exposed are shown to be easily exchangeable following the grafting process. Reversible volume shrinkage/expansion, roughening, and variation of adhesion are observed.