scholarly journals Controlled nanogel and macrogel structures from self-assembly of a stimuli-responsive amphiphilic block copolymer

RSC Advances ◽  
2016 ◽  
Vol 6 (69) ◽  
pp. 64791-64798 ◽  
Author(s):  
JianCheng Liu ◽  
Christina Uhlir ◽  
Parag K. Shah ◽  
Fang Sun ◽  
Jeffrey W. Stansbury
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Raft Polymerization ◽  
Amphiphilic Block Copolymer ◽  
Stimuli Responsive

RAFT polymerization was utilized to prepare an amphiphilic block copolymer containing both hydrophilic and hydrophobic segments.

An Hg2+-selective chemosensor based on the self-assembly of a novel amphiphilic block copolymer bearing rhodamine 6G derivative moieties in purely aqueous media

2015 ◽  
Vol 7 (6) ◽  
pp. 2738-2746 ◽  
Author(s):  
Zhao Wang ◽  
Zhongkui Yang ◽  
Tao Gao ◽  
Jingwen He ◽  
Laijiang Gong ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Rhodamine 6G ◽  
Raft Polymerization ◽  
Aqueous Media ◽  
The Self ◽  
Amphiphilic Block Copolymer ◽  
Fluorescent Chemosensor

An amphiphilic block copolymer-based colorimetric and fluorescent chemosensor for Hg2+was prepared, which was synthesized by sequential RAFT polymerization of NIPAM and R6GDM (a novel Hg2+-sensitive rhodamine monomer).

Copper-Coordination Induced Fabrication of Stimuli-Responsive Polymersomes from Amphiphilic Block Copolymer Containing Pendant Thioethers

2021 ◽  
Author(s):  
Shuqi Dong ◽  
Li Liu ◽  
Hanying Zhao
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Raft Polymerization ◽  
Amphiphilic Block Copolymers ◽  
Amphiphilic Block Copolymer ◽  
Stimuli Responsive ◽  
Copper Coordination

In this work, we synthesized oxidation-responsive amphiphilic block copolymers PEG45-b-P(MET/PBC)n bearing pendant phenylboronic ester carbamate (PBC) and thioether moieties in the hydrophobic block by RAFT polymerization and post-polymerization modification. As...

The Self-Assembly of an Amphiphilic Block Copolymer: A Dissipative Particle Dynamics Study

2005 ◽  
Vol 42 (3) ◽  
pp. 180-183 ◽  
Author(s):  
S. G. Schulz ◽  
U. Frieske ◽  
H. Kuhn ◽  
G. Schmid ◽  
F. Müller ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Dissipative Particle Dynamics ◽  
Particle Dynamics ◽  
The Self ◽  
Amphiphilic Block Copolymer

Photo- and Thermo-Dual-Responsive Organic/Inorganic Hybrid Materials

2013 ◽  
Vol 538 ◽  
pp. 181-184 ◽  
Author(s):  
Xin De Tang ◽  
Ye Chen ◽  
Fa Qi Yu ◽  
Mei Shan Pei
Keyword(s):  
Block Copolymer ◽  
Hybrid Materials ◽  
Self Assembly ◽  
Polymeric Materials ◽  
Stimuli Responsive ◽  
Inorganic Hybrid ◽  
Dual Responsive ◽  
Hexyl Methacrylate ◽  
Poly Ethylene ◽  
Copolymer Poly

Organic/inorganic hybrid materials based upon stimuli-responsive copolymers have attracted an inceasing attention. Compared with the polymeric materials, these hybrid materials can form aggregates in aqueous solution with much more stable shape-persistance due to the inorganic structure, which facilitate the mass delivery and long-term life. A novel hybrid material based on a new reactive block copolymer, poly(ethylene oxide)-block-poly{3-(trimethoxysilyl)propyl methacrylate-co-N-isopropylacrylamide-co-6-[4-(4-methoxyphenylazo)phenoxy]hexyl methacrylate} [PEO-P(TMSPMA-NIPAM-AzoMA)] was synthesized via atom transfer radical polymerization (ATRP). The vesicles were obtained by self-assembly of the resulting block copolymer in a selective solvent, and then the PTMSPMA block was subjected to hydrolysis and polycondensation reaction to fix vesicle wall in the presence of triethylamine as a catalyst. The photo- and thermo- dual-responsive properties of the vesicles were investigated.

Solvent Effects on the Synthesis of Polymeric Nanoparticles via Block Copolymer Self-Assembly Using Microporous Membranes

2020 ◽  
Vol 1000 ◽  
pp. 324-330
Author(s):  
Sri Agustina ◽  
Masayoshi Tokuda ◽  
Hideto Minami ◽  
Cyrille Boyer ◽  
Per B. Zetterlund
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Self Assembly ◽  
Polymeric Nanoparticles ◽  
Raft Polymerization ◽  
Membrane Emulsification ◽  
Membrane Pore ◽  
Novel Technique ◽  
Wide Range ◽  
Membrane Pore Size

The self-assembly of block copolymers has attracted attention for many decades because it can yield polymeric nanoobjects with a wide range of morphologies. Membrane emulsification is a fairly novel technique for preparation of various types of emulsions, which relies on the dispersed phase passing through a membrane in order to effect droplet formation. In this study, we have prepared polymeric nanoparticles of different morphologies using self-assembly of asymmetric block copolymers in connection with membrane emulsification. Shirasu Porous Glass (SPG) membranes has been employed as the membrane emulsification equipment, and poly (oligoethylene glycol acrylate)-block-poly (styrene) (POEGA-b-PSt) copolymers prepared via RAFT polymerization. It has been found that a number of different morphologies can be achieved using this novel technique, including spheres, rods, and vesicles. Interestingly, the results have shown that the morphology can be controlled not only by adjusting experimental parameters specific to the membrane emulsification step such as membrane pore size and pressure, but also by changing the nature of organic solvent. As such, this method provides a novel route to these interesting nanoobjects, with interesting prospects in terms of exercising morphology control without altering the nature of the block copolymer itself.

Self-assembly and disassembly of a redox-responsive ferrocene-containing amphiphilic block copolymer for controlled release

2015 ◽  
Vol 6 (10) ◽  
pp. 1817-1829 ◽  
Author(s):  
Lichao Liu ◽  
Leilei Rui ◽  
Yun Gao ◽  
Weian Zhang
Keyword(s):  
Controlled Release ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Rhodamine B ◽  
Self Assembly ◽  
Amphiphilic Block Copolymer ◽  
Model Molecule ◽  
Redox Responsive

The synthesis and self-assembly of ferrocene-containing block copolymers PEG-b-PMAEFc, and the encapsulation and redox-responsive release of a model molecule (rhodamine B) upon external redox stimuli (H2O2).

Synthesis of star thermoresponsive amphiphilic block copolymer nano-assemblies and the effect of topology on their thermoresponse

2019 ◽  
Vol 10 (3) ◽  
pp. 403-411 ◽  
Author(s):  
Mengjiao Cao ◽  
Huijun Nie ◽  
Yuwen Hou ◽  
Guang Han ◽  
Wangqing Zhang
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Dispersion Polymerization ◽  
Amphiphilic Block Copolymer

Well-defined multi-arm star thermoresponsive block copolymer nano-assemblies of [poly(N-isopropylacrylamide)-block-polystyrene]n [(PNIPAM-b-PS)n] with n = 1, 2, 3 and 4 arms were synthesized by RAFT dispersion polymerization via polymerization-induced self-assembly.

A star-shaped amphiphilic block copolymer with dual responses: synthesis, crystallization, self-assembly, redox and LCST–UCST thermoresponsive transition

2016 ◽  
Vol 7 (30) ◽  
pp. 4901-4911 ◽  
Author(s):  
Hua Yuan ◽  
Hai Chi ◽  
Weizhong Yuan
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Amphiphilic Block Copolymer ◽  
Redox Responsive ◽  
Self Assembled

The micelles/aggregates that were self-assembled from a star-shaped copolymer presented redox-responsive behaviour and LCST–UCST thermoresponsive transition.

Amphiphilic block copolymer poly(lactic acid)-block -(glycidylazide polymer)-block -polystyrene: synthesis and self-assembly

2017 ◽  
Vol 66 (7) ◽  
pp. 1037-1043 ◽  
Author(s):  
Guoping Li ◽  
Haoxue Dong ◽  
Menghui Liu ◽  
Min Xia ◽  
Chunpeng Chai ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Block Copolymer ◽  
Self Assembly ◽  
Amphiphilic Block Copolymer ◽  
Poly Lactic Acid ◽  
Copolymer Poly ◽  
Polymer Block
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