[Langmuir] Control the Wettability of Poly(N-isopropylacrylamide-co-1-adamantan-1-ylmethyl acrylate) Modified Surfaces: The More Ada, the Bigger Impact?
writer：Xiujuan Shi, Gaojian Chen, Yanwei Wang, Lin Yuan, Qiang Zhang, David M Haddleton, Hong Chen
keywords：http://pubs.acs.org/doi/abs/10.1021/la4037748
source：期刊
specific source：Langmuir, 2013, 29 (46), pp 14188–14195
Issue time：2013年
Surface-initiated
SET-LRP was used to synthesize polymer brush containing
N-isopropylacrylamide and adamantyl acrylate using Cu(I)Cl/Me6-TREN as
precursor catalyst and isopropanol/H2O as solvent. Different reaction
conditions were explored to investigate the influence of different
parameters (reaction time, catalyst concentration, monomer
concentration) on the polymerization. Copolymers with variable
1-adamantan-1-ylmethyl acrylate (Ada) content and comparable thickness
were synthesized onto silicon surfaces. Furthermore, hydrophilic and
bioactive molecule, β-cyclodextrin-(mannose)7 (CDm), was synthesized and
complexed with adamantane via host-guest interaction. The effect of
adamantane alone and the effect of CDm together with adamantane on the
wettability and thermo-responsive property of surface were investigated
in detail. Experimental and molecular structure analysis showed that Ada
at certain content together with CDm has the greatest impact on surface
wettability. When Ada content was high (20%), copolymer-CDm surfaces
showed almost no CDm complexed with Ada as the result of steric
hindrance.
