title: A surface-grafted thermoresponsive hydrogel in which the surface structure dominates the bulk properties.
abstract: A surface-grafted hydrogel was successfully synthesized by immobilization of the ATRP initiator at the surface region of the gel and the subsequent ARGET ATRP step. This is the first example of a bulk hydrogel with a dense surface-localized layer of a grafted polymer and "active" permeation control of the gel.
authors.affiliation: Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan. akimoto@cross.t.u-tokyo.ac.jp ryo@cross.t.u-tokyo.ac.jp.
authors.forename: Ko
authors.initials: K
authors.lastname: Matsukawa
authors.forename: Tsukuru
authors.initials: T
authors.lastname: Masuda
authors.forename: Aya Mizutani
authors.initials: AM
authors.lastname: Akimoto
authors.forename: Ryo
authors.initials: R
authors.lastname: Yoshida