Role of each part of cyanobiphenyl-containing polymers in porous-film preparation by using the breath-figure method

2019 ◽  
Vol 47 (8) ◽  
pp. 1139-1144
Author(s):  
Yumiko Naka ◽  
Lisa Nagashima ◽  
Hiromu Takayama ◽  
Khoa Van Le ◽  
Takeo Sasaki
Keyword(s):  
Porous Film ◽  
Breath Figure ◽  
Breath Figure Method ◽  
Film Preparation

One-Step Dynamic Fabrication of Asymmetric Multi-Layered Porous Films for Sustained Drug Delivery

2021 ◽  
Author(s):  
Pengcheng Cui ◽  
Silong Wu ◽  
Jun Xie ◽  
Jiaying Ma ◽  
Lingyun Ding ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Porous Film ◽  
Porous Films ◽  
Inverse Emulsion ◽  
Sustained Drug Delivery ◽  
Breath Figure ◽  
One Step ◽  
Breath Figure Method

Asymmetric multi-layered porous film was prepared by casting inverse emulsion following the breath figure method. The porous morphologies both on the surface and in the bulk of the fabricated film...

ATRP Synthesis of PS-b-PtBMA and Preparation of Porous Film

2013 ◽  
Vol 364 ◽  
pp. 679-683
Author(s):  
Chang Hao Yan ◽  
Zhi Jiao Zhang ◽  
Hai Yan Chen ◽  
Zhong Yi Xie ◽  
Ting Zhu ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Catalyst System ◽  
Porous Film ◽  
Atom Transfer ◽  
H Nmr ◽  
Breath Figure ◽  
Breath Figure Method ◽  
End Group

The polystyrene with end group of Br was synthesized by using MBrP as the initiator, CuBr/ PMDETA as the catalyst system according to atom transfer radical polymerization (ATRP). The effect of reaction temperature was studied and the system was confirmed as the active polymerization. Then PS-Br and CuBr/ PMDETA were respectively used as macroinitiator and catalyst to polymerize tBMA according to atom transfer radical polymerization (ATRP). The structure of the product was characterized by GPCFTIR1H-NMR. The amphiphilic block copolymer was obtained after hydrolysis. And the honeycomb porous film was prepared by PS-b-PMAA through using breath figure method.

Multiple interfaces in self-assembled breath figures

2014 ◽  
Vol 50 (31) ◽  
pp. 4024-4039 ◽  
Author(s):  
Ling-Shu Wan ◽  
Liang-Wei Zhu ◽  
Yang Ou ◽  
Zhi-Kang Xu
Keyword(s):  
Stimuli Responsive ◽  
Breath Figures ◽  
Multiple Interfaces ◽  
Breath Figure ◽  
Responsive Surfaces ◽  
Breath Figure Method ◽  
Self Assembled

Progress in the breath figure method is reviewed by emphasizing the role of the multiple interfaces and the applications of honeycomb films in separation, biocatalysis, biosensing, templating, stimuli-responsive surfaces and adhesive surfaces.

Fabrication of porous film with controlled pore size and wettability by electric breath figure method

2014 ◽  
Vol 2 (35) ◽  
pp. 7168-7172 ◽  
Author(s):  
Song Zhai ◽  
Jia-Ru Ye ◽  
Nan Wang ◽  
Lin-Hai Jiang ◽  
Qing Shen
Keyword(s):  
Pore Size ◽  
Porous Film ◽  
Breath Figure ◽  
Electrostatic Generator ◽  
Breath Figure Method ◽  
The Common

A novel electric breath figure (EBF) method was developed by applying an electrostatic generator to assist the common breath figure (BF) method, and it was applied to fabricate polystyrene (PS) film.

Effects of Substrate, Solvent, Graft Density and Graft Length on the Formation of Cellulose-Based Ordered Porous Film

2012 ◽  
Vol 496 ◽  
pp. 138-141 ◽  
Author(s):  
Wen Yong Liu ◽  
Yi Chen ◽  
Yue Jun Liu ◽  
Xi Hai Hao
Keyword(s):  
Silicon Substrate ◽  
Porous Film ◽  
Side Chain ◽  
Porous Films ◽  
Mica Substrate ◽  
Breath Figure ◽  
Breath Figure Method ◽  
Graft Density ◽  
Ordered Porous ◽  
Graft Length

We investigated the preparation of porous film of cellulose-based graft copolymer by breath figure method. The effects of substrate, solvent, graft density and graft length on the formation of porous film were elucidated. The results showed that ordered porous films could be facilely formed on the glass and mica substrate, while no ordered porous films were obtained on the silicon substrate. The ordered porous films were formed from the copolymer/CS2 solution, while no ordered porous films were done from the copolymer/CH2Cl2, CHCl3 and toluene solution. Moreover, no ordered porous films were obtained from the copolymer with spare graft density or with long side chain. The results indicated that the substrate, solvent, graft density and graft length had important effects on the ordered porous film.

scholarly journals Preparation of Hierarchical Highly Ordered Porous Films of Brominated Poly(phenylene oxide) and Hydrophilic SiO2/C Membrane via the Breath Figure Method

Materials ◽  
2018 ◽  
Vol 11 (4) ◽  
pp. 481 ◽  
Author(s):  
Hua Yuan ◽  
Bing Yu ◽  
Hailin Cong ◽  
Ming Chi ◽  
Yuanzhe Cheng ◽  
...  
Keyword(s):  
Porous Films ◽  
Phenylene Oxide ◽  
Breath Figure ◽  
Breath Figure Method ◽  
Ordered Porous

scholarly journals The Effect of the Isomeric Chlorine Substitutions on the Honeycomb-Patterned Films of Poly(x-chlorostyrene)s/Polystyrene Blends and Copolymers via Static Breath Figure Technique

Materials ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 167 ◽  
Author(s):  
Leire Ruiz-Rubio ◽  
Leyre Pérez-Álvarez ◽  
Julia Sanchez-Bodón ◽  
Valeria Arrighi ◽  
José Luis Vilas-Vilela
Keyword(s):  
Voronoi Tessellation ◽  
Contact Guidance ◽  
Polymeric Thin Films ◽  
Styrene Copolymers ◽  
Breath Figure ◽  
Wide Range ◽  
Breath Figure Method ◽  
Patterned Films ◽  
Figure Technique ◽  
Potential Use

Polymeric thin films patterned with honeycomb structures were prepared from poly(x-chlorostyrene) and statistical poly(x-chlorostyrene-co-styrene) copolymers by static breath figure method. Each polymeric sample was synthesized by free radical polymerization and its solution in tetrahydrofuran cast on glass wafers under 90% relative humidity (RH). The effect of the chorine substitution in the topography and conformational entropy was evaluated. The entropy of each sample was calculated by using Voronoi tessellation. The obtained results revealed that these materials could be a suitable toolbox to develop a honeycomb patterns with a wide range of pore sizes for a potential use in contact guidance induced culture.

scholarly journals Facile Fabrication of Superhydrophobic Surface from Fluorinated POSS Acrylate Copolymer via One-Step Breath Figure Method and Its Anti-Corrosion Property

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 1953 ◽  
Author(s):  
Meng Liu ◽  
Xiaochen Zhang ◽  
Dong Wang ◽  
Jiaji Cheng ◽  
Xiujiang Pang ◽  
...  
Keyword(s):  
Corrosion Current ◽  
Corrosion Property ◽  
Superhydrophobic Coating ◽  
Acrylate Copolymer ◽  
Breath Figure ◽  
Acrylic Copolymers ◽  
One Step ◽  
Facile Fabrication ◽  
Breath Figure Method ◽  
Oligomeric Silsesquioxane

Novel fluorinated polyhedral oligomeric silsesquioxane (POSS) acrylic copolymers were synthesized by the radical solution polymerization. The superhydrophobic coating was prepared using a one-step breath figure method. Chemical constitution, morphology, hydrophobicity, and anticorrosion ability of as-prepared coatings were investigated by the corresponding equipment. The addition of proper fluorinated POSS can synchronously promote the formation of the micro-nano convex structure and the enrichment of fluorinated groups on the surface. Compared to commercial acrylic coating, the fluorinated POSS coating presented enhanced anticorrosion performance. The impedance was the highest and the corrosion current density was the lowest for superhydrophobic coating with 25 wt % fluorinated POSS.

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