Cosolvency-Induced Switching of the Adhesion between Poly(methyl methacrylate) Brushes | Zendy

Yunlong Yu | Zendy; Bernard D. Kieviet | Zendy; Edit Kutnyánszky | Zendy; G. Julius Vancsó | Zendy; Sissi de Beer | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Cosolvency-Induced Switching of the Adhesion between Poly(methyl methacrylate) Brushes

Author(s) -

Yunlong Yu,

Bernard D. Kieviet,

Edit Kutnyánszky,

G. Julius Vancsó,

Sissi de Beer

Publication year - 2014

Publication title -

acs macro letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.966

H-Index - 92

ISSN - 2161-1653

DOI - 10.1021/mz500775w

Subject(s) - adhesion , adhesive , methyl methacrylate , materials science , polymer , swelling , solvent , poly(methyl methacrylate) , chemical engineering , coating , methacrylate , polymer chemistry , composite material , ethanol , polymerization , chemistry , organic chemistry , layer (electronics) , engineering

We present a simple method to reversibly switch the adhesive force between two surfaces that are decorated with poly(methyl methacrylate) (PMMA) graft polymers. By employment of a PMMA/isopropanol/water or a PMMA/ethanol/water cosolvent system, we can tune the swelling of the brushes. In pure isopropanol or ethanol the polymer grafts are collapsed, and the adhesion is high when the contacting brushes are pulled apart. In an 80–20 vol % isopropanol–water or ethanol–water composition, the brushes are swollen. In these systems the adhesion is approximately 5 times smaller compared to the adhesion measured in the pure solvent systems. Moreover, we show that PMMA/isopropanol/water cosolvent systems perform better as switchable adhesives than PMMA/ethanol/water cosolvent systems. In the latter pulling events can arise when the swollen brushes are kept in contact for a longer time, such that the adhesion hysteresis can become large and the surface coating can be damaged due to bond-breaking events

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research