Exploring the Self-Assembly Capabilities of ABA-Type SBS, SIS, and Their Analogous Hydrogenated Copolymers onto Different Nanostructures Using Atomic Force Microscopy

Materials
Nikolaos Politakos, Galder Kortaberria

Abstract

In this work, the self-assembled morphologies obtained for poly(styrene-b-butadiene-b-styrene) (SBS) and poly(styrene-b-isoprene-b-styrene) (SIS) ABA-type copolymers were investigated before and after hydrogenation of the polydiene block, which led to poly(styrene-b-ethylene)/poly(ethylene-b-styrene) (SEES) and poly(styrene-b-ethylene)/poly(propylene-b-styrene) (SEPS) copolymers, respectively. The evaluation of different morphologies was carried out using atomic force microscopy (AFM), analyzing the effect of various parameters such as the solvent and polymer concentrations employed for film casting (toluene, cyclohexane, or tetrahydrofurane with concentrations of 1 and 3 wt%), together with that of the annealing treatment (thermal annealing at room temperature, and 60, 80, and 100 °C). The effect of these parameters in combination with the chemical nature of the polydiene block led to different morphologies with different topographic aspects affecting the roughness (Ra) of the film.

References

Apr 1, 1996·Physical Review Letters·G J KelloggS K Satija
Jul 30, 2002·Physical Review Letters·A KnollR Magerle
Jul 28, 2004·Langmuir : the ACS Journal of Surfaces and Colloids·Ploysai KaewsaihaHideki Matsuoka
Apr 12, 2005·Science·Du Yeol RyuThomas P Russell
Sep 1, 2006·The Journal of Chemical Physics·Juan PengYanchun Han
Mar 6, 2010·ACS Nano·Chia-Cheng ChaoEdwin L Thomas
Jul 14, 2012·Journal of Colloid and Interface Science·Dong Hyun LeeSoojin Park
Apr 2, 2013·Journal of Colloid and Interface Science·Feifei XueShichun Jiang
Mar 27, 2015·Chemistry : a European Journal·Elizabeth Elacqua, Marcus Weck
Jun 30, 2015·Chemical Communications : Chem Comm·Zhigang XuMingfeng Wang
Sep 22, 2017·ACS Applied Materials & Interfaces·Peter Müller-Buschbaum
Dec 23, 2017·ACS Applied Materials & Interfaces·Senlin XiaPeter Müller-Buschbaum
Feb 28, 2018·Nature Communications·Camille Boucher-JacobsDamien Guironnet
Aug 2, 2018·Macromolecular Rapid Communications·Jiali WangVolker Abetz

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Methods Mentioned

BETA
atomic force microscopy
AFM
chemical modification
thermal treatment

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