000014126 001__ 14126
000014126 005__ 20161115100142.0
000014126 04107 $$aeng
000014126 046__ $$k2016-08-21
000014126 100__ $$aManav, Manav
000014126 24500 $$aMechanics of thermoresponsive polymer brush based soft materials: theory and experiments

000014126 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014126 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014126 506__ $$arestricted
000014126 520__ $$2eng$$aStimuli responsive soft nanomaterials are of growing scientific and technological interest. Polymer brushes are densely packed, surface tethered polymer chains. A brush behaves like an elastic surface layer with residual surface stress which produces deformation of the substrate. In a thermoresponsive brush, temperature reversibly changes the residual surface stress as well as the elastic modulus of the surface layer due to coil-globule phase transition in the brush. A mechanics model incorporating Young-Laplace effect is developed for high grafting density brush (graft density > 0.2) which produces large surface stress. The model is then applied to experiments on a poly(Nisopropylacrylamide)-co-Poly(N,N-Dimethylacrylamide) (PNIPAm-co-PDMA) polymer brush grafted on a plasticized poly(vinyl chloride) (pPVC) film using surface-initiated atom transfer radical polymerization (SI-ATRP). The model estimates effective surface stress due to the brush to be ∼ −10 N/m which can be halved by applying temperature.

000014126 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014126 653__ $$a

000014126 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014126 720__ $$aManav, Manav
000014126 8560_ $$ffischerc@itam.cas.cz
000014126 8564_ $$s160748$$uhttps://invenio.itam.cas.cz/record/14126/files/PO.MS05-1.06.32.pdf$$yOriginal version of the author's contribution as presented on CD,  page 322, code PO.MS05-1.06.32
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000014126 962__ $$r13812
000014126 980__ $$aPAPER