Self-Assembly of a Patterned Hydrophobic-Hydrophilic Surface by Soft Segment Microphase Separation in a Segmented Polyurethane: Combined Experimental Study and Molecular Dynamics Simulation

Self-Assembly of a Patterned Hydrophobic-Hydrophilic Surface by Soft Segment Microphase Separation in a Segmented Polyurethane: Combined Experimental Study and Molecular Dynamics Simulation Publisher

Vakili H¹ ; Mohseni M¹ ; Makki H¹ ; Yahyaei H¹ ; Ghanbari H^{2, 3} ; Gonzalez A⁴ ; Irusta L⁴

Show Affiliations

1. Amirkabir University of Technology, Department of Polymer and Color Engineering, 350 Hafez Ave., Tehran, Iran
2. Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences (TUMS), Italia Street, Tehran, Iran
3. Medical Biomaterials Research Center (MBRC), Tehran University of Medical Sciences (TUMS), Italia Street, Tehran, Iran
4. POLYMAT, Department of Polymer Science and Technology, University of the Basque Country (UPV/EHU), Avda. Tolosa 72, Donostia-San Sebastian, 20018, Spain

Source: Polymer Published:2020

Abstract

Designing surfaces with patterns of varying wettability is of significant importance for many applications. This fascinating feature is inspired by nature where it is vital for the survival of some living creatures. This research shows that an inherent incompatibility between different soft segments of segmented polyurethanes can play a pivotal role in designing such surfaces. We employed experimental techniques as well as coarse-grained molecular dynamics (CG MD) simulations to illustrate the microphase separation between soft segments with significantly different wettability. We started with poly(hexamethylene carbonate) polyurethane and partially replaced the polycarbonate diol (PC), the hydrophobic soft segment, with poly (ethylene glycol) (PEG), the superhydrophilic soft segment. Experimental analyses indicated a phase separation between PEG and PC, as soft segments, and our simulations merely confirmed it. This led to a core-shell morphology in which the hard segments are squeezed between two incompatible soft segments. Our combined simulation and experimental analyses proved a concurrent phase mixing of hard/soft segments with phase separation between soft segments. Moreover, the CG MD simulations elucidated the evolution of microphase organization as the polymerization proceeds and our further analysis shed light on the microarchitecture of the individual PU chains. © 2020 Elsevier Ltd

2. Microphase Arrangement of Smart Superhydrophilic Segmented Polyurethanes at Their Interface With Water, Langmuir (2020)

Experts (# of related papers)

Hossein Ghanbari (2)

Style	Citing Format
MLA	Vakili H, et al.. "Self-Assembly of a Patterned Hydrophobic-Hydrophilic Surface by Soft Segment Microphase Separation in a Segmented Polyurethane: Combined Experimental Study and Molecular Dynamics Simulation." Polymer, vol. 195, no. , 2020, pp. -.
APA	Vakili H, Mohseni M, Makki H, Yahyaei H, Ghanbari H, Gonzalez A, Irusta L (2020). Self-Assembly of a Patterned Hydrophobic-Hydrophilic Surface by Soft Segment Microphase Separation in a Segmented Polyurethane: Combined Experimental Study and Molecular Dynamics Simulation. Polymer, 195(), -.
Chicago	Vakili H, Mohseni M, Makki H, Yahyaei H, Ghanbari H, Gonzalez A, Irusta L. "Self-Assembly of a Patterned Hydrophobic-Hydrophilic Surface by Soft Segment Microphase Separation in a Segmented Polyurethane: Combined Experimental Study and Molecular Dynamics Simulation." Polymer 195, no. (2020): -.
Harvard	Vakili H et al. (2020) 'Self-Assembly of a Patterned Hydrophobic-Hydrophilic Surface by Soft Segment Microphase Separation in a Segmented Polyurethane: Combined Experimental Study and Molecular Dynamics Simulation', Polymer, 195(), pp. -.
Vancouver	Vakili H, Mohseni M, Makki H, Yahyaei H, Ghanbari H, Gonzalez A, et al.. Self-Assembly of a Patterned Hydrophobic-Hydrophilic Surface by Soft Segment Microphase Separation in a Segmented Polyurethane: Combined Experimental Study and Molecular Dynamics Simulation. Polymer. 2020;195():-.
BibTex	@article{ author = {Vakili H and Mohseni M and Makki H and Yahyaei H and Ghanbari H and Gonzalez A and Irusta L}, title = {Self-Assembly of a Patterned Hydrophobic-Hydrophilic Surface by Soft Segment Microphase Separation in a Segmented Polyurethane: Combined Experimental Study and Molecular Dynamics Simulation}, journal = {Polymer}, volume = {195}, number = {}, pages = {-}, year = {2020} }
RIS	TY - JOUR AU - Vakili H AU - Mohseni M AU - Makki H AU - Yahyaei H AU - Ghanbari H AU - Gonzalez A AU - Irusta L TI - Self-Assembly of a Patterned Hydrophobic-Hydrophilic Surface by Soft Segment Microphase Separation in a Segmented Polyurethane: Combined Experimental Study and Molecular Dynamics Simulation JO - Polymer VL - 195 IS - SP - EP - PY - 2020 ER -

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