Poly(vinylidene fluoride)-block-poly(N-vinylpyrrolidone) diblock copolymers: Synthesis via sequential RAFT/MADIX polymerization and self-assembly behavior

Polymer ◽  
2018 ◽  
Vol 142 ◽  
pp. 61-71 ◽  
Author(s):  
Lei Li ◽  
Jingang Li ◽  
Sixun Zheng
Keyword(s):  
Self Assembly ◽  
Diblock Copolymers ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride ◽  
Assembly Behavior

scholarly journals Evaluation of Self-Assembly Pathways to Control Crystallization-Driven Self-Assembly of a Semicrystalline P(VDF-co-HFP)-b-PEG-b-P(VDF-co-HFP) Triblock Copolymer

Molecules ◽  
2020 ◽  
Vol 25 (17) ◽  
pp. 4033
Author(s):  
Enrique Folgado ◽  
Matthias Mayor ◽  
Vincent Ladmiral ◽  
Mona Semsarilar
Keyword(s):  
Self Assembly ◽  
Triblock Copolymer ◽  
Vinylidene Fluoride ◽  
The Self ◽  
Selective Solvents ◽  
Poly Vinylidene Fluoride ◽  
Self Assembled ◽  
Assembly Behavior ◽  
Assembly Pathways ◽  
Induced Crystallization

To date, amphiphilic block copolymers (BCPs) containing poly(vinylidene fluoride-co-hexafluoropropene) (P(VDF-co-HFP)) copolymers are rare. At moderate content of HFP, this fluorocopolymer remains semicrystalline and is able to crystallize. Amphiphilic BCPs, containing a P(VDF-co-HFP) segment could, thus be appealing for the preparation of self-assembled block copolymer morphologies through crystallization-driven self-assembly (CDSA) in selective solvents. Here the synthesis, characterization by 1H and 19F NMR spectroscopies, GPC, TGA, DSC, and XRD; and the self-assembly behavior of a P(VDF-co-HFP)-b-PEG-b-P(VDF-co-HFP) triblock copolymer were studied. The well-defined ABA amphiphilic fluorinated triblock copolymer was self-assembled into nano-objects by varying a series of key parameters such as the solvent and the non -solvent, the self-assembly protocols, and the temperature. A large range of morphologies such as spherical, square, rectangular, fiber-like, and platelet structures with sizes ranging from a few nanometers to micrometers was obtained depending on the self-assembly protocols and solvents systems used. The temperature-induced crystallization-driven self-assembly (TI-CDSA) protocol allowed some control over the shape and size of some of the morphologies.

Synthesis of poly[(decanoic acid)-block-styrene] diblock copolymers and their self-assembly behavior in aqueous medium

2008 ◽  
Vol 57 (4) ◽  
pp. 571-576 ◽  
Author(s):  
Dongshuang Li ◽  
Ke Sha ◽  
Yapeng Li ◽  
Peng Ai ◽  
Xiaotian Liu ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Self Assembly ◽  
Diblock Copolymers ◽  
Decanoic Acid ◽  
Assembly Behavior

Nanoscale localization of poly(vinylidene fluoride) in the lamellae of thin films of symmetric polystyrene–poly(methyl methacrylate) diblock copolymers

Polymer ◽  
2005 ◽  
Vol 46 (11) ◽  
pp. 3776-3781 ◽  
Author(s):  
Seong Il Yoo ◽  
Sang-Hyun Yun ◽  
Jeong Min Choi ◽  
Byeong-Hyeok Sohn ◽  
Wang-Cheol Zin ◽  
...  
Keyword(s):  
Thin Films ◽  
Methyl Methacrylate ◽  
Diblock Copolymers ◽  
Vinylidene Fluoride ◽  
Poly Methyl Methacrylate ◽  
Poly Vinylidene Fluoride

Effect of macromolecular architecture on the self-assembly behavior of copolymers in a selective polymer host

Soft Matter ◽  
2018 ◽  
Vol 14 (47) ◽  
pp. 9562-9570 ◽  
Author(s):  
Petra Bačová ◽  
Romanos Foskinis ◽  
Emmanouil Glynos ◽  
Anastassia N. Rissanou ◽  
Spiros H. Anastasiadis ◽  
...  
Keyword(s):  
Simulation Study ◽  
Self Assembly ◽  
Diblock Copolymers ◽  
Dynamical Behavior ◽  
The Self ◽  
Detailed Simulation ◽  
Assembly Behavior ◽  
Macromolecular Architecture ◽  
Polymer Host

We present a detailed simulation study of the structural and dynamical behavior of amphiphilic mikto-arm stars versus that of linear diblock copolymers in a selective homopolymer host.

Synthesis and Self-Assembly Behavior of Chiral Amphiphilic Diblock Copolymers Bearing L-Phenylalanine

2011 ◽  
Vol 345 ◽  
pp. 334-337
Author(s):  
Yong Zhou ◽  
Bing Liu
Keyword(s):  
Amino Acid ◽  
Self Assembly ◽  
Diblock Copolymers ◽  
Dihydrogen Phosphate ◽  
Sodium Dihydrogen Phosphate ◽  
Poly Ethylene Oxide ◽  
Amphiphilic Diblock Copolymers ◽  
Assembly Behavior ◽  
Poly Ethylene ◽  
Sodium Dihydrogen

Novel chiral amphiphilic diblock copolymers bearing L-phenylalanine was synthesized using a “click” reaction of N3-L-phenylalanine and MPEO-b-PGPE. The structure and composition of copolymers were characterized by 1H-NMR and elemental analysis. Additionally, the self-assembly behavior of these chiral copolymers was investigated in sodium dihydrogen phosphate buffer (pH 4.5): the CMC of copolymer MPEO-b-PGTP determined by the measurement of surface tension was 2.1 mg/mL; the size and morphology of the micelles were studied using TEM; the specific optical rotation ([α]25D) of the micellar solutions was also measured; the result indicated that the copolymers can form chiral micelles in sodium dihydrogen phosphate buffer (pH =4.5).In recent years, the synthesis, structure and properties of optically active polymer have been paid attention by scientists owing to its potential applications in chiral separation, asymmetric adsorption, chiral synthesis[1]. The amphiphilic block polymers bearing amino acid possess not only the characteristics of the conventional amphiphilic block copolymer, but also good optically activity and biocompatibility. So it can be employed as nanoreactors for asymmetrical catalysis and materials for drug delivery. But there have been few reports published on the synthesis of chiral amphiphilic copolymers bearing amino acid. Sutthira Sutthasupa reported the synthesis of amino acid-based norbornene block copolymer with ester and carboxyl groups as hydrophobic and hydrophilic units[2]. O’Reilly group synthesized the amino acid-based chiral amphiphilic block copolymers using RAFT technique, and elucidated its self-assembly into spherical micelles with optically active hydrophobic core[3]. In the present work, chiral amphiphilic diblock copolymers bearing L-phenylalanine (L-Phe) pendants poly(ethylene oxide)-b-poly (glycidyl triazolyl-L-phenylalanine) (MPEO-b-PGTP) have been synthesized by the modification of poly(ethylene oxide)-b-poly (propargyl glycidyl ether) (MPEO-b-PGPE) with L-phenylalanine.

Self-assembly of poly(vinylidene fluoride)-block-poly(2-(dimethylamino)ethylmethacrylate) block copolymers prepared by CuAAC click coupling

2017 ◽  
Vol 8 (34) ◽  
pp. 5203-5211 ◽  
Author(s):  
Marc Guerre ◽  
Mona Semsarilar ◽  
Cedric Totée ◽  
Gilles Silly ◽  
Bruno Améduri ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride ◽  
Click Coupling

Self-assembly of PDMAEMA-b-PVDF block copolymers.

Morphology Transition of Diblock Copolymer with Nanoparticles Confined in Cylindrical Nanopores

2013 ◽  
Vol 275-277 ◽  
pp. 1781-1784 ◽  
Author(s):  
Ying Yu ◽  
Yu Xin Zuo ◽  
Zhao Zhang ◽  
Chun Cheng Zuo
Keyword(s):  
Phase Diagram ◽  
Self Assembly ◽  
Diblock Copolymers ◽  
Coarse Grained ◽  
Morphology Transition ◽  
Polymer Interactions ◽  
Simulation Results ◽  
Assembly Behavior ◽  
Dynamics Simulations ◽  
Polymer Interaction

Coarse-grained molecular dynamics simulations on self-assembly behavior of diblock copolymers (DCP) with nanoparticles confined in cylindrical nanopores are perfomed to study the morphology transition of DCP affected by the confined ratio of the cylindrical confinement diameter to the block copolymer domain spacing, the wall-polymer interactions, the particle-polymer interaction potential and the component concentration. The simulation results show that nanoparticles have a pronounced effect on the morphology transition of DCP and can therefore be considered as an important aspect in controlling the confined self-assembly in cylindrical confinement. Besides, the phase diagram indicates the process of morphology transition.

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