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Open AccessArticle

Conformation Study of Dual Stimuli-Responsive Core-Shell Diblock Polymer Brushes

by Kaimin Chen 1,*, Lan Cao 2, Ying Zhang 2, Kai Li 1, Xue Qin 2 and Xuhong Guo 2,*
1
College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
2
State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
*
Authors to whom correspondence should be addressed.
Polymers 2018, 10(10), 1084; https://doi.org/10.3390/polym10101084
Received: 30 August 2018 / Revised: 26 September 2018 / Accepted: 28 September 2018 / Published: 30 September 2018
Stimuli-responsive nanoparticles are among the most popular research topics. In this study, two types of core-shell (polystyrene with a photoiniferter (PSV) as the core and diblock as the shell) polymer brushes ([email protected]b-PAA and [email protected]b-PNIPA) were designed and prepared using surface-initiated photoiniferter-mediated polymerization (SI-PIMP). Moreover, their pH- and temperature-stimuli responses were explored by dynamic light scattering (DLS) and turbidimeter under various conditions. The results showed that the conformational change was determined on the basis of the competition among electrostatic repulsion, hydrophobic interaction, hydrogen bonding, and steric hindrance, which was also confirmed by protein adsorption experiments. These results are not only helpful for the design and synthesis of stimuli-responsive polymer brushes but also shed light on controlled protein immobilization under mild conditions. View Full-Text
Keywords: stimuli-response; polymer brush; polyelectrolyte; bovine serum albumin stimuli-response; polymer brush; polyelectrolyte; bovine serum albumin
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MDPI and ACS Style

Chen, K.; Cao, L.; Zhang, Y.; Li, K.; Qin, X.; Guo, X. Conformation Study of Dual Stimuli-Responsive Core-Shell Diblock Polymer Brushes. Polymers 2018, 10, 1084.

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