Responsive surface adhesion based on host–guest interaction of polymer brushes with cyclodextrins and arylazopyrazoles

2019 ◽  
Vol 10 (6) ◽  
pp. 683-690 ◽  
Author(s):  
Sebastian Lamping ◽  
Lucas Stricker ◽  
Bart Jan Ravoo
Keyword(s):  
Uv Irradiation ◽  
Polymer Brushes ◽  
Surface Adhesion ◽  
Strong Surface

Polymer brushes functionalized with cyclodextrin host and arylazopyrazole guest monomers provide strong surface adhesion that is water resistent but can be deactivated by UV irradiation.

Highly stretchable, self-adhesive, biocompatible, conductive hydrogels as fully polymeric strain sensors

2020 ◽  
Vol 8 (39) ◽  
pp. 20474-20485
Author(s):  
Dong Zhang ◽  
Yijing Tang ◽  
Yanxian Zhang ◽  
Fengyu Yang ◽  
Yonglan Liu ◽  
...  
Keyword(s):  
Strain Sensors ◽  
Surface Adhesion ◽  
Human Movements ◽  
Conductive Hydrogel ◽  
Highly Stretchable ◽  
Strong Surface ◽  
Conductive Hydrogels

A new fully polymeric conductive hydrogel sensor with IPN structure was developed, which achieved ultra-high stretchability, strong surface adhesion, and high sensing stability in response to both large and subtle human movements.

scholarly journals Controlled Surface Adhesion of Macrophages via Patterned Antifouling Polymer Brushes

2020 ◽  
pp. 2000029 ◽  
Author(s):  
Johannes Striebel ◽  
Mariia Vorobii ◽  
Ravi Kumar ◽  
Hui-Yu Liu ◽  
Bingquan Yang ◽  
...  
Keyword(s):  
Polymer Brushes ◽  
Surface Adhesion

Molecular simulations and understanding of antifouling zwitterionic polymer brushes

2020 ◽  
Vol 8 (17) ◽  
pp. 3814-3828 ◽  
Author(s):  
Yonglan Liu ◽  
Dong Zhang ◽  
Baiping Ren ◽  
Xiong Gong ◽  
Lijian Xu ◽  
...  
Keyword(s):  
Polymer Brushes ◽  
Molecular Simulations ◽  
Antifouling Property ◽  
Surface Hydration ◽  
Zwitterionic Polymer ◽  
Strong Surface

Zwitterionic materials demonstrate the strong surface hydration to empower their antifouling property.

PREPARATION OF POLYMER BRUSHES FROM POLY(VINYLIDENE FLUORIDE) SURFACES BY UV IRRADIATION PRETREATMENT

2007 ◽  
Vol 14 (01) ◽  
pp. 23-30 ◽  
Author(s):  
QILAN DENG ◽  
YIWANG CHEN ◽  
WEI SUN
Keyword(s):  
Methyl Methacrylate ◽  
Uv Irradiation ◽  
Photoelectron Spectroscopy ◽  
Polymer Brushes ◽  
Vinylidene Fluoride ◽  
Contact Angles ◽  
Water Contact ◽  
Air Exposure ◽  
Poly Vinylidene Fluoride ◽  
Ft Ir

Grafting of polymer brushes from the poly(vinylidene fluoride) (PVDF) surfaces was carried out. The active species, such as peroxide and hydroperoxide, on the surface were generated via ultraviolet (UV) irradiation pretreatment in nitrogen, followed by air exposure. Homopolymer brushes of methyl methacrylate (MMA) were prepared by the surface-initiated free radical polymerization from the peroxide initiators on the PVDF surface. The peroxides formed on UV-treated and air-exposed PVDF surfaces were determined quantitatively by the reaction with 2,2-diphenyl-1-picrylhydrazyl (DPPH) in toluene. The chemical composition and topography of the graft-functionalized PVDF surfaces were characterized by X-ray photoelectron spectroscopy (XPS), attenuated total reflectance (ATR) FT-IR spectroscopy, and atomic force microscopy (AFM). ATR FT-IR revealed an increase in the graft concentration of poly(methyl methacrylate) (PMMA) on PVDF surfaces with an increase of the UV irradiation pretreatment time. Water contact angles on PVDF surfaces were reduced by surface grafting of PMMA.

scholarly journals Supramolecular surface adhesion mediated by azobenzene polymer brushes

2016 ◽  
Vol 52 (9) ◽  
pp. 1964-1966 ◽  
Author(s):  
Oliver Roling ◽  
Lucas Stricker ◽  
Jens Voskuhl ◽  
Sebastian Lamping ◽  
Bart Jan Ravoo
Keyword(s):  
Polymer Brushes ◽  
Atom Transfer ◽  
Surface Adhesion ◽  
Cyclodextrin Polymer ◽  
Azobenzene Polymer ◽  
Radical Polymerisation

Surface immobilised polymer brushes containing azobenzenes were prepared using microcontact chemistry and surface-initiated atom transfer radical polymerisation. Two surfaces bearing brushes can be glued together in the presence of a β-cyclodextrin polymer.

Improved surface adhesion and coverage of perfluoropolyether lubricants following far-UV irradiation

Langmuir ◽  
1990 ◽  
Vol 6 (9) ◽  
pp. 1522-1524 ◽  
Author(s):  
David D. Saperstein ◽  
L. Judy Lin
Keyword(s):  
Uv Irradiation ◽  
Surface Adhesion
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