Double thermoresponsive pentablock copolymers: synthesis by one-pot RAFT polymerization and self-assembly in aqueous solutions

2017 ◽  
Vol 8 (46) ◽  
pp. 7217-7228 ◽  
Author(s):  
Povilas Radzevicius ◽  
Medeina Steponaviciute ◽  
Tatjana Krivorotova ◽  
Ricardas Makuska
Keyword(s):  
Aqueous Solutions ◽  
Self Assembly ◽  
Raft Polymerization ◽  
Block Sequence ◽  
One Pot ◽  
Sequence Dependent ◽  
Pentablock Copolymers

Pentablock copolymers synthesized by one-pot successive RAFT polymerization are double thermoresponsive and exhibit block sequence dependent aggregation in aqueous solutions.

Oxidation-responsive micelles by a one-pot polymerization-induced self-assembly approach

2018 ◽  
Vol 9 (13) ◽  
pp. 1593-1602 ◽  
Author(s):  
Fabian H. Sobotta ◽  
Franziska Hausig ◽  
Dominic O. Harz ◽  
Stephanie Hoeppener ◽  
Ulrich S. Schubert ◽  
...  
Keyword(s):  
Self Assembly ◽  
Raft Polymerization ◽  
Assembly Process ◽  
Carrier System ◽  
One Pot ◽  
System P

Combining a sequential, one-pot RAFT polymerization with the polymerization-induced self-assembly process results in a versatile oxidation-responsive carrier system.

Self-assembly behavior of pH- and thermo-responsive hydrophilic ABCBA-type pentablock copolymers synthesized by consecutive RAFT polymerization

RSC Advances ◽  
2013 ◽  
Vol 3 (35) ◽  
pp. 15085 ◽  
Author(s):  
Jiucun Chen ◽  
Mingzhu Liu ◽  
Chunmei Gao ◽  
Shaoyu Lü ◽  
Xinyu Zhang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Raft Polymerization ◽  
Pentablock Copolymers ◽  
Assembly Behavior

scholarly journals Synthesis of Nixantphos Core-Functionalized Amphiphilic Nanoreactors and Application to Rhodium-Catalyzed Aqueous Biphasic 1-Octene Hydroformylation

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1107 ◽  
Author(s):  
Ahmad Joumaa ◽  
Florence Gayet ◽  
Eduardo J. Garcia-Suarez ◽  
Jonas Himmelstrup ◽  
Anders Riisager ◽  
...  
Keyword(s):  
Self Assembly ◽  
Raft Polymerization ◽  
Star Polymer ◽  
Hydrophobic Core ◽  
Polymer Particles ◽  
One Pot ◽  
Styrene Monomer ◽  
Linear Chains ◽  
Reversible Addition ◽  
Aqueous Biphasic

A latex of amphiphilic star polymer particles, functionalized in the hydrophobic core with nixantphos and containing P(MAA-co-PEOMA) linear chains in the hydrophilic shell (nixantphos-functionalized core-crosslinked micelles, or nixantphos@CCM), has been prepared in a one-pot three-step convergent synthesis using reversible addition-fragmentation chain transfer (RAFT) polymerization in water. The synthesis involves polymerization-induced self-assembly (PISA) in the second step and chain crosslinking with di(ethylene glycol) dimethacrylate (DEGDMA) in the final step. The core consists of a functionalized polystyrene, obtained by incorporation of a new nixantphos-functionalized styrene monomer (nixantphos-styrene), which is limited to 1 mol%. The nixantphos-styrene monomer was synthesized in one step by nucleophilic substitution of the chloride of 4-chloromethylstyrene by deprotonated nixantphos in DMF at 60 °C, without interference of either phosphine attack or self-induced styrene polymerization. The polymer particles, after loading with the [Rh(acac)(CO)2] precatalyst to yield Rh-nixantphos@CCM, function as catalytic nanoreactors under aqueous biphasic conditions for the hydroformylation of 1-octene to yield n-nonanal selectively, with no significant amounts of the branched product 2-methyl-octanal.

One-pot synthesis of well-defined amphiphilic alternating copolymer brushes based on POSS and their self-assembly in aqueous solution

RSC Advances ◽  
2015 ◽  
Vol 5 (28) ◽  
pp. 21580-21587 ◽  
Author(s):  
Zhenghe Zhang ◽  
Lizhi Hong ◽  
Jinxia Li ◽  
Feng Liu ◽  
Haibo Cai ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Polyethylene Glycol ◽  
Self Assembly ◽  
Raft Polymerization ◽  
Side Chains ◽  
One Pot ◽  
One Pot Synthesis ◽  
Alternating Copolymer ◽  
Copolymer Brushes

The amphiphilic alternating copolymer brushes P(MIPOSS-alt-VBPEG) with a sequence of alternating MIPOSS and polyethylene glycol (PEG) side chains were synthesized via RAFT polymerization, and they could form spherical aggregates.

PDMAEMA-b-PLMA-b-POEGMA triblock terpolymers via RAFT polymerization and their self-assembly in aqueous solutions

2017 ◽  
Vol 8 (31) ◽  
pp. 4538-4547 ◽  
Author(s):  
Athanasios Skandalis ◽  
Stergios Pispas
Keyword(s):  
Aqueous Solutions ◽  
Self Assembly ◽  
Raft Polymerization ◽  
Aqueous Media ◽  
Spherical Micelles ◽  
Triblock Terpolymers

Novel PDMAEMA-b-PLMA-b-POEGMA triblock terpolymers were synthesized by RAFT polymerization. Triblock polyelectrolytes were obtained by quaternization. PDMAEMA-b-PLMA-b-POEGMA and QPDMAEMA-b-PLMA-b-POEGMA terpolymers self-assemble into spherical micelles with a mixed corona in aqueous media.

scholarly journals “One-pot” aminolysis/thia-Michael addition preparation of well-defined amphiphilic PVDF-b-PEG-b-PVDF triblock copolymers: self-assembly behaviour in mixed solvents

2020 ◽  
Vol 11 (2) ◽  
pp. 401-410 ◽  
Author(s):  
Enrique Folgado ◽  
Marc Guerre ◽  
Antonio Da Costa ◽  
Anthony Ferri ◽  
Ahmed Addad ◽  
...  
Keyword(s):  
Michael Addition ◽  
Self Assembly ◽  
Triblock Copolymer ◽  
Triblock Copolymers ◽  
Raft Polymerization ◽  
Mixed Solvents ◽  
One Pot ◽  
Crystalline Structures

Novel amphiphilic PVDF-based triblock copolymer (PVDF50-b-PEG136-b-PVDF50) is synthesized using RAFT polymerization and a one-pot thia-Michael addition. Self-assembly of this ABA copolymer resulted in formation of original crystalline structures.

'Pseudo-star' Copolymers Formed by a Combination of RAFT Polymerization and Isocyanate-Coupling

2011 ◽  
Vol 64 (8) ◽  
pp. 1047 ◽  
Author(s):  
John Moraes ◽  
Thomas Maschmeyer ◽  
Sébastien Perrier
Keyword(s):  
Ethylene Glycol ◽  
Self Assembly ◽  
Butyl Acrylate ◽  
Raft Polymerization ◽  
Poly Ethylene Glycol ◽  
Reaction Conditions ◽  
One Pot ◽  
Star Copolymers ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

We describe the formation of pseudo-star copolymers via incorporation of an isocyanate-bearing monomer, dimethyl meta-isopropenyl benzyl isocyanate (TMI) into a homopolymer of butyl acrylate (BA) using a one-pot, two-step synthesis. The resultant product maintains the functionality of the isocyanate moiety, which is used to attach poly(ethylene glycol) methyl ether onto the copolymeric chain under benign reaction conditions. The resultant pseudo-star copolymers were isolated and their self-assembly in the presence of water studied.

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