Gyroid-structured nanoporous polymer monolith from PDMS-containing block copolymers for templated synthesis

Lin, Tze-Chung; Yang, Kai-Chieh; Georgopanos, Prokopios; Avgeropoulos, Apostolos; Ho, Rong‐Ming

doi:10.1016/j.polymer.2017.04.045

Cited by 27 publications

(22 citation statements)

References 49 publications

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“…Different morphologies can self‐assembly depending on the values of the product χ × N and the volumetric fraction of the blocks . These morphologies include body centered cubic packed spheres, hexagonally packed cylinders (HEX), continuous gyroids, and alternating lamellae . Accordingly, the self‐assembly of the block copolymers can be a powerful tool to create functional materials and CPNs with tailored structures and, thereby fine‐tuning properties …”

Section: Introductionmentioning

confidence: 99%

Flexible conductive poly(styrene‐butadiene‐styrene)/carbon nanotubes nanocomposites: Self‐assembly and broadband electrical behavior

Santos

Melo

Goncalves

et al. 2018

J of Applied Polymer Sci

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Flexible conductive nanocomposites with the ability of self‐assembly into well‐ordered structures are promising multifunctional materials for energy conversion and storage devices. In this work, flexible nanocomposites based on multi‐walled carbon nanotubes (MWCNTs) and poly(styrene‐butadiene‐styrene) (SBS) were obtained by solution casting, followed by a post‐annealing treatment, during 7 days at 110 °C, to enable the self‐organization of the SBS. The impact of the MWCNTs on the self‐assembly was studied by atomic force microscopy and Small angle X‐rays scattering, and the conductivity of these nanocomposites was analyzed over the broadband frequency range, that is, 10−1–106 Hz. The results revealed that the lower MWCNTs loadings (∼0.2 v %) were the most suitable to achieve a conductive network through the SBS, maintaining self‐assembled domains. These domains include hexagonally packed cylinders and alternating lamellae. Furthermore, at loadings above 1 v %, the impact of further MWCNTs addition on the conductivity was marginal over the whole frequency range and the self‐assembly tendency was progressively reduced. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46650.

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Section: Introductionmentioning

confidence: 99%

Flexible conductive poly(styrene‐butadiene‐styrene)/carbon nanotubes nanocomposites: Self‐assembly and broadband electrical behavior

Santos

Melo

Goncalves

et al. 2018

J of Applied Polymer Sci

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“…Synthesis and identification of DG-structured and SGstructured Ni Figure 1 illustrates the experimental procedures for the fabrication of the MNSs in this study. As previously demonstrated by our laboratory, nanoporous PS with DGstructured nanochannels can be fabricated by either hydrolyzing self-assembled PS-PLLA or HF etching of PS-PDMS, which can then be used as templates for the fabrication of DG-structured Ni through templated electroless plating 32,39,40 . With a completely pore-filled Pd 2+ solution within the nanochannels of the PS template, homogeneously distributed Pd nuclei can be formed using hydrazine as the reduction agent.…”

Section: Resultsmentioning

confidence: 92%

Single gyroid-structured metallic nanoporous spheres fabricated from double gyroid-forming block copolymers via templated electroless plating

Yang¹,

Yao²,

Huang³

et al. 2019

NPG Asia Mater

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Herein, we suggest a methodology for the fabrication of well-defined metallic nanoporous spheres with single gyroid (SG) structure by simply using self-assembled diblock copolymer with double gyroid (DG) structure as a template for electroless plating. Note that owing to the consideration of thermodynamic stability, the self-assembly of diblock copolymers gives rise to a DG phase instead of an SG phase. By controlling the nucleus density for the reduction of Pd ions within the diblock copolymer template, SG-structured Ni can be easily fabricated through the nucleation and growth processes. Consequently, nanoporous Ni spheres with uniform pore sizes and high specific surface areas can be fabricated. Moreover, nanoporous Ni spheres with controlled microscale particle sizes can thus be obtained by controlling the reduction time for the growth of Ni, which enables the feasibility of recyclability via magnetic fields. The combination of structural and morphological characteristics of the fabricated nanoporous Ni spheres make them appealing for use in a wide variety of applications, such as high-efficiency and well selectivity hydrogenation catalysts with recyclability due to their narrow pore size distributions, high specific surface areas, 3D curved surfaces, and controlled microscale particle sizes.

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“…The resulting mesoporous polymers have been used as templates for the generation of mesoporous metals, ceramics, and carbons . In addition, mesoporous polymers with cylindrical structures can be used as membranes, as “lithographic” masks, and as templates for generating nanometre‐scale dot and pillar structures . The different approaches used for generating mesoporous polymer structures from the self‐assembled BCPs can be loosely categorized as: block removal, additive removal, and BCP removal.…”

Section: Self‐assembly: An Ace In the Holementioning

confidence: 99%

“…[39,[43][44][45][46][47][48][49] In addition, mesoporous polymers with cylindrical structures can be used as membranes, as "lithographic" masks, and as templates for generating nanometre-scale dot and pillar structures. [46,48,[50][51][52][53] The different approaches used for generating mesoporous polymer structures from the self-assembled BCPs can be loosely categorized as: block removal, additive removal, and BCP removal.…”

Section: Self-assembly: An Ace In the Holementioning

confidence: 99%

The Chemistry of Porous Polymers: The Holey Grail

Silverstein

2020

Israel Journal of Chemistry

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Porous polymers have been evolving continuously since the introduction of foam rubber in 1929. Today, pore diameters ranging from sub‐nanometre to millimetre can be generated controllably. Cutting‐edge porous polymers are now being applied at the forefront of critical problems with societal and environmental impact including advanced systems for biomedicine, water purification, energy storage, and gas purification and storage. The commonly‐used pore generation approaches include macromolecular design, self‐assembly, phase separation, solid and liquid templating, sol‐gel formation, and foaming. In each, The Chemistry of Polymers, both the polymerization chemistry and the macromolecular structural chemistry, must be applied advantageously to generate the empty volume within the polymer and then fix it in place. This essay will traverse the various pore size scales, describing the chemistries involved and discussing their implications.

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Gyroid-structured nanoporous polymer monolith from PDMS-containing block copolymers for templated synthesis

Cited by 27 publications

References 49 publications

Flexible conductive poly(styrene‐butadiene‐styrene)/carbon nanotubes nanocomposites: Self‐assembly and broadband electrical behavior

Flexible conductive poly(styrene‐butadiene‐styrene)/carbon nanotubes nanocomposites: Self‐assembly and broadband electrical behavior

Single gyroid-structured metallic nanoporous spheres fabricated from double gyroid-forming block copolymers via templated electroless plating

The Chemistry of Porous Polymers: The Holey Grail

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