Shape-Controlled synthesis of silver nanoparticles in temperature-responsive grafted polymer brushes for optical applications

• Published in: Applied surface science 2019-01, Vol.463, p.1124-1133
• Main Authors: Stetsyshyn, Yurij, Awsiuk, Kamil, Kusnezh, Viktor, Raczkowska, Joanna, Jany, Benedykt R., Kostruba, Andrij, Harhay, Khrystyna, Ohar, Halyna, Lishchynskyi, Ostap, Shymborska, Yana, Kryvenchuk, Yuriy, Krok, Franciszek, Budkowski, Andrzej
• Format: Article
• Language: English
• Subjects: Optic effects; POEGMA; Poly(4-vinylpyridine); Shape of the Ag-NPs; Stimuli-responsive polymer coatings
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2018.09.033

[Display omitted] •Shape-controlled synthesis of Ag-NPs in grafted temperature-responsive brushes.•Strong impact of the composition of grafted brushes on the shape of the Ag-NPs.•Temperature-induced changes in morphology of coatings with Ag-NPs.•Strong influence of temperature on optical effects of the Ag-NPs. The polymeric coatings of poly(4-vinylpyridine), poly(oligo(ethylene glycol)ethyl ether methacrylate246) and poly(4-vinylpyridine-co-oligo(ethylene glycol)ethyl ether methacrylate246) attached to glass using oligoperoxide initiator were successfully fabricated and then silver ions were immobilized in coatings. Silver nanoparticles were included in polymer matrixes using sodium borohydride as reducing agent of the immobilized silver ions. The composition and morphology of resulting coatings were analyzed. First, strong impact of the chemical nature of the grafted polymer brushes on the shape of the silver nanoparticles (sphere-like shape, nanorods and weakly branched dendritic nanostructures) was shown. In addition, the influence of the temperature on coating morphology and optical effects of the silver nanoparticles were demonstrated using Atomic Force Microscopy and UV–VIS spectroscopy.