SYNTHESIS OF PSt-b-PAA-b-PSt AMPHIPHILIC BLOCK COPOLYMERS VIA RAFT POLYMERIZATION AND THEIR SELF-ASSEMBLY IN IONIC LIQUID [BMIM][PF6]

AbstractThe block copolymer of polystyrene-block-polyacrylate-blockpolystyrene (PSt-PAA-PSt) has been synthesized by reversible addition fragmentation chain-transfer (RAFT) polymerization using S,S′-Bis(α,α′-dimethyl-α′′-acetic acid)-trithiocarbonate (BDATC) as chain transfer agent. Three copolymers form micelles in an ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]). The nanostructures of the PSt-PAA-PSt micelles formed in ionic liquid were observed by transmission electron microscopy (TEM). The self-assembled morphologies of the micelles are strongly dependent on the length of PAA block chains when the chain length of PS is fixed. The affinity of PAA chains for water and [BMIM][PF6] reverses with increasing temperature. Research results show that the copolymer with low polydispersity can be obtained by controlling polymerization, and the flexibility of amphiphilic block copolymers for controlling nanostructure in an ionic liquid presents potential applications in many arenas.

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Synthesis and self-assembly behaviors of three-armed amphiphilic block copolymers via RAFT polymerization

Polymer ◽

10.1016/j.polymer.2008.08.034 ◽

2008 ◽

Vol 49 (21) ◽

pp. 4569-4575 ◽

Cited By ~ 32

Author(s):

Weidong Zhang ◽

Wei Zhang ◽

Nianchen Zhou ◽

Zhenping Cheng ◽

Jian Zhu ◽

...

Keyword(s):

Block Copolymers ◽

Self Assembly ◽

Raft Polymerization ◽

Amphiphilic Block Copolymers

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Synthesis of Terpyridine-Terminated Amphiphilic Block Copolymers and Their Self-Assembly into Metallo-Polymer Nanovesicles

Materials ◽

10.3390/ma12040601 ◽

2019 ◽

Vol 12 (4) ◽

pp. 601 ◽

Cited By ~ 3

Author(s):

Tatyana Elkin ◽

Stacy Copp ◽

Ryan Hamblin ◽

Jennifer Martinez ◽

Gabriel Montaño ◽

...

Keyword(s):

Polyethylene Glycol ◽

Block Copolymers ◽

Self Assembly ◽

Chain Transfer ◽

Raft Polymerization ◽

Amphiphilic Block Copolymers ◽

Transmission Electron ◽

Reversible Addition ◽

Efficient Route ◽

High Yields

Polystyrene-b-polyethylene glycol (PS-b-PEG) amphiphilic block copolymers featuring a terminal tridentate N,N,N-ligand (terpyridine) were synthesized for the first time through an efficient route. In this approach, telechelic chain-end modified polystyrenes were produced via reversible addition-fragmentation chain-transfer (RAFT) polymerization by using terpyridine trithiocarbonate as the chain-transfer agent, after which the hydrophilic polyethylene glycol (PEG) block was incorporated into the hydrophobic polystyrene (PS) block in high yields via a thiol-ene process. Following metal-coordination with Mn2+, Fe2+, Ni2+, and Zn2+, the resulting metallo-polymers were self-assembled into spherical, vesicular nanostructures, as characterized by dynamic light scattering and transmission electron microscopy (TEM) imaging.

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Preparation of well-defined 2D-lenticular aggregates by self-assembly of PNIPAM-b-PVDF amphiphilic diblock copolymers in solution

Polymer Chemistry ◽

10.1039/d0py01193b ◽

2021 ◽

Author(s):

Enrique Folgado ◽

Matthias Mayor ◽

Didier Cot ◽

Michel Ramonda ◽

Franck Godiard ◽

...

Keyword(s):

Block Copolymers ◽

Self Assembly ◽

Diblock Copolymers ◽

Dimethyl Carbonate ◽

Raft Polymerization ◽

Amphiphilic Block Copolymers ◽

Amphiphilic Diblock Copolymers

PNIPAM-b-PVDF amphiphilic block copolymers were synthesized via RAFT polymerization in dimethyl carbonate. These block copolymers were able to self-assemble into various morphologies such as spherical, crumpled, lamellar and lenticular 2D aggregates.

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Self-Assembly of Poly(methacrylic acid)-b-poly(butyl acrylate) Amphiphilic Block Copolymers in Methanol via RAFT Polymerization and during Film Formation for Wrinkly Surface Pattern

Macromolecules ◽

10.1021/ma402167d ◽

2013 ◽

Vol 47 (1) ◽

pp. 165-174 ◽

Cited By ~ 17

Author(s):

Longhai Guo ◽

Yongjing Jiang ◽

Siyu Chen ◽

Teng Qiu ◽

Xiaoyu Li

Keyword(s):

Block Copolymers ◽

Methacrylic Acid ◽

Self Assembly ◽

Butyl Acrylate ◽

Raft Polymerization ◽

Film Formation ◽

Amphiphilic Block Copolymers ◽

Surface Pattern

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Polymerisation-induced self-assembly (PISA) as a straightforward formulation strategy for stimuli-responsive drug delivery systems and biomaterials: recent advances

Biomaterials Science ◽

10.1039/d0bm01406k ◽

2021 ◽

Vol 9 (1) ◽

pp. 38-50

Author(s):

Hien Phan ◽

Vincenzo Taresco ◽

Jacques Penelle ◽

Benoit Couturaud

Keyword(s):

Drug Delivery ◽

Block Copolymers ◽

Drug Release ◽

Self Assembly ◽

Drug Delivery Systems ◽

Amphiphilic Block Copolymers ◽

Stimuli Responsive ◽

Site Specific ◽

On Demand ◽

Redox Agents

Stimuli-responsive amphiphilic block copolymers obtained by PISA have emerged as promising nanocarriers for enhancing site-specific and on-demand drug release in response to a range of stimuli such as pH, redox agents, light or temperature.

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