Pore-selective modification of the honeycomb-patterned porous polystyrene film with poly(N-isopropylacrylamide) and application for thermo-responsive smart material

Modigunta, Jeevan Kumar Reddy; Kim, Jun Mo; Cao, Thuy Thi; Yabu, Hiroshi; Huh, Do Sung

doi:10.1016/j.polymer.2020.122630

Cited by 17 publications

(11 citation statements)

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“…In the bottom-up process of the BF mechanism, the stage at which there is an interfacial interaction of water droplet and polymer solution can be applied for the site-selective functionalization. Applying this phenomenon, Huh et al recently introduced a modified BF method, called the reactive BF (rBF) method, for the single-step fabrication of pore-selective functionalized films by accompanying an interfacial chemical reaction during the BF process [ 98 , 109 , 110 , 111 , 112 , 113 ]. For this method, a solvent-soluble reactant is added to the hydrophobic polymer solution, and a water-soluble counter reactant is added to the water used for humid conditions.…”

Section: Pore-selective Functionalization Of Hcp Filmsmentioning

confidence: 99%

“…For this method, a solvent-soluble reactant is added to the hydrophobic polymer solution, and a water-soluble counter reactant is added to the water used for humid conditions. When the polymer solution containing functionalizing reactant is cast under humid conditions containing counter reactant, a chemical reaction happens at the aqueous droplet/polymer solution interface and the product is formed in the pore of HCP film as a coating, summarized in Table 3 [ 109 , 110 , 111 , 112 ]. The benefit of this approach is that any material, either organic [ 109 , 110 , 111 , 112 ] or inorganic [ 113 ], can be functionalized by this method in one single step.…”

Section: Pore-selective Functionalization Of Hcp Filmsmentioning

confidence: 99%

“…When the polymer solution containing functionalizing reactant is cast under humid conditions containing counter reactant, a chemical reaction happens at the aqueous droplet/polymer solution interface and the product is formed in the pore of HCP film as a coating, summarized in Table 3 [ 109 , 110 , 111 , 112 ]. The benefit of this approach is that any material, either organic [ 109 , 110 , 111 , 112 ] or inorganic [ 113 ], can be functionalized by this method in one single step. Male et al fabricated pore functionalized polyaniline (PANI) HCP porous films by in-situ polymerization via the BF method [ 110 ].…”

Section: Pore-selective Functionalization Of Hcp Filmsmentioning

confidence: 99%

“…Modigunta et al fabricated a temperature-sensitive polymer, poly (N-isopropyl acrylamide) (PNIPAAm), inside the pores of the HCP porous films using this same strategy. They oxidized the PS-CHO assembled inside the pores of HCP porous films using oxone to fabricate –COOH in the pores of the HCP porous films [ 112 ]. The oxidization of the aldehyde group occurred at the interface of the water droplet/polymer solution accompanying an interfacial reaction.…”

Section: Pore-selective Functionalization Of Hcp Filmsmentioning

confidence: 99%

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Modified Breath Figure Methods for the Pore-Selective Functionalization of Honeycomb-Patterned Porous Polymer Films

2022

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Recent developments in the field of the breath figure (BF) method have led to renewed interest from researchers in the pore-selective functionalization of honeycomb-patterned (HCP) films. The pore-selective functionalization of the HCP film gives unique properties to the film which can be used for specific applications such as protein recognition, catalysis, selective cell culturing, and drug delivery. There are several comprehensive reviews available for the pore-selective functionalization by the self-assembly process. However, considerable progress in preparation technologies and incorporation of new materials inside the pore surface for exact applications have emerged, thus warranting a review. In this review, we have focused on the pore-selective functionalization of the HCP films by the modified BF method, in which the self-assembly process is accompanied by an interfacial reaction. We review the importance of pore-selective functionalization, its applications, present limitations, and future perspectives.

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Section: Pore-selective Functionalization Of Hcp Filmsmentioning

confidence: 99%

Section: Pore-selective Functionalization Of Hcp Filmsmentioning

confidence: 99%

Section: Pore-selective Functionalization Of Hcp Filmsmentioning

confidence: 99%

Section: Pore-selective Functionalization Of Hcp Filmsmentioning

confidence: 99%

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Modified Breath Figure Methods for the Pore-Selective Functionalization of Honeycomb-Patterned Porous Polymer Films

2022

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“…Thermoresponsive sub‐microporous substrate, such as poly( N ‐ isopropylacrylamide)/PS [ 145 ] and poly( N ‐isopropylacrylamide)/ formylated PS [ 146 ] with a lower critical solution temperature can be prepared by BF method. These materials have been applied to controlled growth of tissue cells, capture of nanoparticles, adjustable drug release and electrochemical application.…”

Section: Application Of Bf Membranementioning

confidence: 99%

Ordered Honeycomb‐Pattern Membrane^†

Yuan

Dai

et al. 2020

Chin. J. Chem.

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Ordered porous membranes have wide and important application prospects in the fields of filtration, separation, catalysis, biomedicine, etc., and have attracted growing interest in the field of material science. Among diverse membrane preparation approaches, breath pattern method has been widely concerned due to its simplicity in the preparation, ease in tuning the structure/property and functionality of formed membranes, and broad utility for various polymers. With the development of material design, the application spectrum of breath figure membrane has been greatly expanded. However, since the pore morphology of porous membrane is influenced by many factors, the controlling mechanism of normalization has not been clear yet. In this paper, the research progress of film-forming materials in recent years is reviewed, and the correlation between pore formation and pore morphology is discussed in details. This information will provide a systematic and in-depth perspective for research in this filed and an important guideline for the preparation of the ordered porous films with divergent applications. Hua Yuan (left) is an associate professor in College of Materials Science and Engineering, Qingdao University, China. She received her doctorate from Shandong University in China in 2013. She is mainly engaged in the research of carbon fiber, composites and microfiltration membrane. Guangzhen Li (middle) is a graduate student in the College of Materials Science and Engineering, Qingdao University, China. He graduated with a bachelor's degree in engineering from Qingdao University in 2019. His current research focuses on the structural design and functionalization of membrane materials. Enhao Dai (right) is a graduate student of the College of Materials Science and Engineering of Qingdao University. He received a bachelor's degree in engineering from Yantai University in 2018. Currently, he mainly studies carbon fiber modification.

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Photoswitchable Configuration of Nematic Liquid Crystal Droplets Embedded in a Honeycomb‐Patterned Film

Mukai

Hara

Yabu³

et al. 2021

Adv Materials Inter

Self Cite

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Honeycomb‐patterned polymer films prepared by the breath figure method exhibit unique shape features. These films have potential in various applications, but functional materials are rarely embedded into the arrayed cavity. Here, a photoswitchable function of a compartmented nematic liquid crystal (NLC) in a honeycomb array is proposed. Surface segregation and liquid crystal self‐assembly processes cover curved honeycomb walls of polystyrene (PS) with a high‐density polymer brush of an azobenzene side chain liquid crystalline polymer (SCLCP), producing honeycomb polymer films with isolated cavities. Spherical confinement of the cavities with the SCLC brush provides a bipolar nematic director (planar anchoring), whereas UV light irradiation induces a radial configuration (homeotropic anchoring) of NLC droplets. Photoisomerization of azobenzene UV and visible light irradiation repeatedly induces a photoswitchable change between the bipolar and radial modes.

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Pore-selective modification of the honeycomb-patterned porous polystyrene film with poly(N-isopropylacrylamide) and application for thermo-responsive smart material

Cited by 17 publications

References 68 publications

Modified Breath Figure Methods for the Pore-Selective Functionalization of Honeycomb-Patterned Porous Polymer Films

Modified Breath Figure Methods for the Pore-Selective Functionalization of Honeycomb-Patterned Porous Polymer Films

Ordered Honeycomb‐Pattern Membrane^†

Photoswitchable Configuration of Nematic Liquid Crystal Droplets Embedded in a Honeycomb‐Patterned Film

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Pore-selective modification of the honeycomb-patterned porous polystyrene film with poly(N-isopropylacrylamide) and application for thermo-responsive smart material

Cited by 17 publications

References 68 publications

Modified Breath Figure Methods for the Pore-Selective Functionalization of Honeycomb-Patterned Porous Polymer Films

Modified Breath Figure Methods for the Pore-Selective Functionalization of Honeycomb-Patterned Porous Polymer Films

Ordered Honeycomb‐Pattern Membrane†

Photoswitchable Configuration of Nematic Liquid Crystal Droplets Embedded in a Honeycomb‐Patterned Film

Contact Info

Product

Resources

About

Ordered Honeycomb‐Pattern Membrane^†