Creation of Polymeric Nanostructures by Living Coordination Block Copolymerization of Allene Derivatives Having Fluoroalkyl Substituents Under Polymerization-induced Self-assembly Conditions and Their Application to Superhydrophobic Surface

2021 ◽  
Author(s):  
Yidan Cheng ◽  
Takeshi Wakiya ◽  
Shinsuke Inagi ◽  
Toshikazu Takata ◽  
Ikuyoshi Tomita
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Superhydrophobic Surface ◽  
Block Copolymerization ◽  
Spontaneous Formation ◽  
Superhydrophobic Coatings

The spontaneous formation of polymeric nanostructures possessing outer fluorous segments by the living coordination block copolymerization and their application to the transparent superhydrophobic coatings are described. The block copolymers (BCPs)...

Self-Assembly Process of Different Poly(oxystyrene)-Poly(oxyethylene) Block Copolymers: Spontaneous Formation of Vesicular Structures and Elongated Micelles

Langmuir ◽  
2008 ◽  
Vol 24 (14) ◽  
pp. 7107-7116 ◽  
Author(s):  
Josué Juárez ◽  
Pablo Taboada ◽  
Miguel A. Valdez ◽  
Víctor Mosquera
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Assembly Process ◽  
Spontaneous Formation

Porous films by the self-assembly of inorganic rod-b-coil block copolymers: mechanistic insights into the vesicle-to-pore morphological evolution

Soft Matter ◽  
2016 ◽  
Vol 12 (12) ◽  
pp. 3084-3092 ◽  
Author(s):  
Silvia Suárez-Suárez ◽  
Gabino A. Carriedo ◽  
Alejandro Presa Soto
Keyword(s):  
Thin Films ◽  
Block Copolymers ◽  
Self Assembly ◽  
Morphological Evolution ◽  
The Self ◽  
Porous Films ◽  
Spontaneous Formation

The self-assembly in thin films of polyphosphazene block copolymers combining a rigid ([N = P(O2C12H8)], O2C12H8= 2,2′-dioxy-1,1′-biphenyl) and a flexible ([N = PMePh]) blocks, led to the spontaneous formation of porous films through a vesicle-to-pore morphological evolutions pathway.

Radio-opaque Micelles for X-ray Imaging

2014 ◽  
Vol 67 (1) ◽  
pp. 78 ◽  
Author(s):  
Zhiyong Wang ◽  
Teddy Chang ◽  
Luke Hunter ◽  
Andrew M. Gregory ◽  
Marcel Tanudji ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Block Size ◽  
Drug Carriers ◽  
Block Copolymerization ◽  
X Ray ◽  
Transmission Electron ◽  
X Ray Imaging ◽  
Reversible Addition ◽  
Rate Of Polymerization

Block copolymers based on iodinated monomers were prepared with the aim of creating nanoparticles as contrast agents suitable for X-ray imaging. Reversible addition–fragmentation chain-transfer polymerization was employed to synthesize block copolymers based on oligo(ethylene glycol) methylether methacrylate (OEGMEMA) and 2-[2′,3′,5′-triiodobenzoyl]oxyethyl methacrylate (METB). The polymerization of METB was found to be slow owing to the low solubility of the monomer, which does not allow high enough concentration to achieve a fast rate of polymerization. However, the block copolymerization was well controlled, resulting in several block copolymers, POEGMEMA-b-PMETB, which were further investigated in regards to their self-assembly in water. Micelles were prepared using POEGMEMA55-b-PMETB18, POEGMEMA55-b-PMETB32, POEGMEMA100-b-PMETB22, and POEGMEMA100-b-PMETB32. Transmission electron microscopy and dynamic light scattering revealed micelle sizes between 30 and 45 nm depending on the block size. The micelles were found to show a strong contrast similar to BaSO4 and Visipaque (iodixanol) during X-ray analysis. These micelles can now further be employed as drug carriers or can be conjugated to a bioactive group for targeting.

Transparent superhydrophobic coatings from amphiphilic-fluorinated block copolymers synthesized by aqueous polymerization-induced self-assembly

2016 ◽  
Vol 7 (24) ◽  
pp. 3998-4003 ◽  
Author(s):  
Farid Ouhib ◽  
Ali Dirani ◽  
Abdelhafid Aqil ◽  
Karine Glinel ◽  
Bernard Nysten ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Self Assembly ◽  
Superhydrophobic Coatings ◽  
Aqueous Polymerization

Preparation of transparent and superhydrophobic coatings by co-deposition of an aqueous solution of an amphiphilic fluorinated block copolymer with silica was developed.

Self-Assembly of Hydrogels From Elastin-Mimetic Block Copolymers

2002 ◽  
Vol 724 ◽  
Author(s):  
Elizabeth R. Wright ◽  
R. Andrew McMillan ◽  
Alan Cooper ◽  
Robert P. Apkarian ◽  
Vincent P. Conticello
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
Variable Temperature ◽  
Inverse Temperature ◽  
Temperature Transition ◽  
Scanning Calorimetry ◽  
Design Synthesis ◽  
Inverse Temperature Transition ◽  
Functional Biomaterials

AbstractTriblock copolymers have traditionally been synthesized with conventional organic components. However, triblock copolymers could be synthesized by the incorporation of two incompatible protein-based polymers. The polypeptides would differ in their hydrophobicity and confer unique physiochemical properties to the resultant materials. One protein-based polymer, based on a sequence of native elastin, that has been utilized in the synthesis of biomaterials is poly (Valine-Proline-Glycine-ValineGlycine) or poly(VPGVG) [1]. This polypeptide has been shown to have an inverse temperature transition that can be adjusted by non-conservative amino acid substitutions in the fourth position [2]. By combining polypeptide blocks with different inverse temperature transition values due to hydrophobicity differences, we expect to produce amphiphilic polypeptides capable of self-assembly into hydrogels. Our research examines the design, synthesis and characterization of elastin-mimetic block copolymers as functional biomaterials. The methods that are used for the characterization include variable temperature 1D and 2D High-Resolution-NMR, cryo-High Resolutions Scanning Electron Microscopy and Differential Scanning Calorimetry.

Square patterns formed from the directed self-assembly of block copolymers

2021 ◽  
Author(s):  
Weihua Li ◽  
Xueying Gu
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Bottom Up ◽  
Tremendous Progress

Since tremendous progress has been made, directed self-assembly (DSA) of block copolymers has been regarded as one of the most promising bottom-up lithography techniques. In particular, DSA has been successfully...

Effects of Trace Water on Self-Assembly of Sulfonated Block Copolymers During Solution Processing

2020 ◽  
Vol 2 (11) ◽  
pp. 4893-4901
Author(s):  
Karthika Madathil ◽  
Kayla A. Lantz ◽  
Morgan Stefik ◽  
Gila E. Stein
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Solution Processing ◽  
Trace Water

Self-Assembly of Single Chain Janus Nanoparticles from Azobenzene-Containing Block Copolymers and Reversible Photoinduced Morphology Transition

2021 ◽  
Author(s):  
Wei Wen ◽  
Aihua Chen
Keyword(s):  
Block Copolymers ◽  
Experimental Research ◽  
Self Assembly ◽  
The Self ◽  
Single Chain ◽  
Morphology Transition ◽  
Janus Nanoparticles ◽  
Assembly Behavior

Self-assembly of amphiphilic single chain Janus nanoparticles (SCJNPs) is a novel and promising approach to fabricate assemblies with diversified morphologies. However, the experimental research of the self-assembly behavior of SCJNPs...

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