Controlling self-assembling co-polymer coatings of hydrophilic polysaccharide substrates via co-polymer block length ratio

Scacchi, Alberto; Hasheminejad, Kourosh; Nikkhah, Sousa Javan; Sammalkorpi, Maria

doi:10.1016/j.jcis.2023.02.117

Cited by 4 publications

(3 citation statements)

References 111 publications

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“…An interesting modelling solution in between thermodynamic state models and molecular level modelling are coarsegrained and mesoscale modelling approaches, especially dissipative particle dynamics (DPD). [68][69][70] While the approach allows modelling assembly and dynamics at time scales in the microsecond to millisecond range and describing system sizes in the micrometer range which brings access to large scale assembly morphologies and their transitions [71][72][73][74][75] and allows also mapping system dependencies on adsorption phases, [76][77][78][79] the trade-off is the abstraction of chemical features and molecular scale interactions, e.g. hydrogen bonding and solvent shell formation.…”

Section: Introductionmentioning

confidence: 99%

From microemulsion phase diagrams to hydrophilicity and hydration controlled adsorption: a dissipative particle dynamics modelling study of phospholipid assembly in bio oils

Vuorte¹,

Sammalkorpi²

2023

Soft Matter

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Section: Introductionmentioning

confidence: 99%

From microemulsion phase diagrams to hydrophilicity and hydration controlled adsorption: a dissipative particle dynamics modelling study of phospholipid assembly in bio oils

Vuorte¹,

Sammalkorpi²

2023

Soft Matter

Self Cite

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“…Although the self‐assembly of block copolymers has opened new opportunities to direct the assembly of inorganic nanoparticles, 9 to prepare porous polymeric materials, 10,11 advanced drug delivery devices, 12 nanomanufacturing 13 and surface coating, 14 achieving its large‐area ordering is fundamental and still challenging. Hence, much research has focused on manipulating surface interactions through topographic or chemically modified substrates to induce long‐range ordering 8 .…”

Section: Introductionmentioning

confidence: 99%

“…5 Thus, the self-assembly of block copolymers in thin films is a simple and low-cost method for surface patterning or template technology at a nanoscale, supporting the development of high-density information storage, nanoelectronics and photonic crystals. 8 Although the self-assembly of block copolymers has opened new opportunities to direct the assembly of inorganic nanoparticles, 9 to prepare porous polymeric materials, 10,11 advanced drug delivery devices, 12 nanomanufacturing 13 and surface coating, 14 achieving its large-area ordering is fundamental and still challenging. Hence, much research has focused on manipulating surface interactions through topographic or chemically modified substrates to induce long-range ordering.…”

Section: Introductionmentioning

confidence: 99%

Fine‐tuning in‐plane interdomain spacing of polystyrene‐b‐poly(ethene‐co‐butadiene)‐b‐polystyrene triblock copolymer adding monodisperse polystyrene

Almeida,

Staffa,

Balogh

et al. 2023

Polymer International

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The influence of adding narrow molar mass distribution polystyrene (PS) homopolymer on the morphology and/or dewetting processing of poly(styrene)‐b‐poly(ethene‐co‐butene‐1)‐b‐poly(styrene) triblock copolymer (SEBS) thin films was investigated. The addition of the homopolymer caused a transition from non‐straight ribbons (with regularly spaced necks) to a spherical microdomain structure for an amount of 75%v of PS (SEBS/PS 1:3), which also shows an interdomain distance increase of three times regarding the neat SEBS. This spacing and interdomain distance control coincides with the amount of homopolymer added in the blend. The blending with PS demonstrates an approach to fine‐tuning the block copolymer structure and tailoring in‐plane microdomain spacing. Smaller or higher amounts of PS changed the spontaneous patterned structure originally observed for the neat triblock copolymer, resulting in a non‐ordered microphase separation.This article is protected by copyright. All rights reserved.

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Morphological Transitions of Block Copolymer Micelles: Implications for Mesoporous Materials Ordering

Moreno,

Nunes,

Calo

2024

Macro Theory & Simulations

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The design of block‐copolymer‐based functional materials, including mesoporous membranes and nanoparticles, requires a comprehensive understanding of the hierarchical assembly of block copolymers in selective solvents into micelles and subsequent ordered phases. It is hypothesized that micellar ordering and characteristic assembly can be described using a set of phase parameters that account for entropic and enthalpic interactions. Dissipative particle dynamics (DPD) simulations are used to systematically investigate the self‐assembly of semidiluted block copolymers, resembling isoporous membrane preparation conditions. The effect of Flory–Huggins interaction parameters, block lengths, and concentration on the morphology and polydispersity of the micelles is evaluated. The interaction parameters are mapped into Flory–Huggins theory by considering the block's conformation. These results reveal the effect of polymer concentration and solvent affinity on the morphological transition of the aggregates, in agreement with existing experimental evidence. It is identified that monodisperse‐spherical micelles in solution are fundamental to stabilize ordered states. Weak solvent segregation of the largest block, curvature of the core‐corona interface, and stretching of the corona‐forming one are found to be key to stabilize monodisperse assemblies. These conditions can be predicted using spherical‐micelles packing considerations and a global phase parameter from the Flory–Huggins theory. This study provides valuable insights into the self‐assembly of diblock copolymers and offers a potential way to optimize the preparation of mesoporous ordered structures and micelle ordering in semidiluted systems.

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Controlling self-assembling co-polymer coatings of hydrophilic polysaccharide substrates via co-polymer block length ratio

Cited by 4 publications

References 111 publications

From microemulsion phase diagrams to hydrophilicity and hydration controlled adsorption: a dissipative particle dynamics modelling study of phospholipid assembly in bio oils

From microemulsion phase diagrams to hydrophilicity and hydration controlled adsorption: a dissipative particle dynamics modelling study of phospholipid assembly in bio oils

Fine‐tuning in‐plane interdomain spacing of polystyrene‐b‐poly(ethene‐co‐butadiene)‐b‐polystyrene triblock copolymer adding monodisperse polystyrene

Morphological Transitions of Block Copolymer Micelles: Implications for Mesoporous Materials Ordering

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