On‐Surface RAFT Polymerization using Oxygen to form Triblock Copolymer Brushes

2021 ◽  
pp. 2100270
Author(s):  
Ji Hoon Lee ◽  
Hyun Ji Seo ◽  
Seung Yeon Lee ◽  
Woo Kyung Cho ◽  
Kyung‐sun Son
Keyword(s):  
Triblock Copolymer ◽  
Raft Polymerization ◽  
Copolymer Brushes

scholarly journals Synthesis of Non-Uniform Functionalized Amphiphilic Block Copolymers and Giant Vesicles in the Presence of the Belousov–Zhabotinsky Reaction

Biomolecules ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 352 ◽  
Author(s):  
Isadora Berlanga
Keyword(s):  
Photoelectron Spectroscopy ◽  
Self Assembly ◽  
Triblock Copolymer ◽  
Raft Polymerization ◽  
Catalyst Support ◽  
Giant Vesicles ◽  
Bz Reaction ◽  
Reversible Addition ◽  
Morphological Transitions ◽  
New Perspective

Giant vesicles with several-micrometer diameters were prepared by the self-assembly of an amphiphilic block copolymer in the presence of the Belousov–Zhabotinsky (BZ) reaction. The vesicle is composed of a non-uniform triblock copolymer synthesized by multi-step reactions in the presence of air at room temperature. The triblock copolymer contains poly(glycerol monomethacrylate) (PGMA) as the hydrophilic block copolymerized with tris(2,2′-bipyridyl)ruthenium(II) (Ru(bpy)3), which catalyzes the BZ reaction, and 2-hydroxypropyl methacrylate (HPMA) as the hydrophobic block. In this new approach, the radicals generated in the BZ reaction can activate a reversible addition-fragmentation chain transfer (RAFT) polymerization to self-assemble the polymer into vesicles with diameters of approximately 3 µm. X-ray photoelectron spectroscopy (XPS) measurements demonstrated that the PGMA-b-Ru(bpy)3-b-PHPMA triblock copolymer is brominated and increases the osmotic pressure inside the vesicle, leading to micrometer-sized features. The effect of solvent on the morphological transitions are also discussed briefly. This BZ strategy, offers a new perspective to prepare giant vesicles as a platform for promising applications in the areas of microencapsulation and catalyst support, due to their significant sizes and large microcavities.

Synthesis of Triblock Copolymer Brushes by Surface-Initiated Atom Transfer Radical Polymerization

2002 ◽  
Vol 35 (14) ◽  
pp. 5410-5416 ◽  
Author(s):  
Jong-Bum Kim ◽  
Wenxi Huang ◽  
Merlin L. Bruening ◽  
Gregory L. Baker
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Triblock Copolymer ◽  
Atom Transfer ◽  
Copolymer Brushes

Preparation of amphiphilic triblock copolymer brushes for surface patterning

2003 ◽  
Vol 14 (10) ◽  
pp. 1075-1080 ◽  
Author(s):  
Wenxi Huang ◽  
Jong-Bum Kim ◽  
Gregory L Baker ◽  
Merlin L Bruening
Keyword(s):  
Triblock Copolymer ◽  
Surface Patterning ◽  
Amphiphilic Triblock Copolymer ◽  
Copolymer Brushes

scholarly journals The doubly thermo-responsive triblock copolymer nanoparticles prepared through seeded RAFT polymerization

2016 ◽  
Vol 35 (1) ◽  
pp. 66-77 ◽  
Author(s):  
Quan-long Li ◽  
Lei Li ◽  
Hong-song Wang ◽  
Rui Wang ◽  
Wei Wang ◽  
...  
Keyword(s):  
Triblock Copolymer ◽  
Raft Polymerization

scholarly journals Impact of Solvent Quality on the Density Profiles of Looped Triblock Copolymer Brushes by Neutron Reflectivity Measurements

2008 ◽  
Vol 41 (5) ◽  
pp. 1745-1752 ◽  
Author(s):  
Zhenyu Huang ◽  
Jose Alonzo ◽  
Ming Liu ◽  
Haining Ji ◽  
Fang Yin ◽  
...  
Keyword(s):  
Triblock Copolymer ◽  
Neutron Reflectivity ◽  
Density Profiles ◽  
Solvent Quality ◽  
Copolymer Brushes

Synthesis of Zwitterionic Chimeric Polymersomes for Efficient Protein Loading and Intracellular Delivery

2021 ◽  
Author(s):  
bingbing zhao ◽  
Yuting Yan ◽  
Junmei Zhang ◽  
Enping Chen ◽  
Ke Wang ◽  
...  
Keyword(s):  
Ring Opening ◽  
Triblock Copolymer ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Intracellular Delivery ◽  
Ring Opening Polymerization ◽  
H Nmr ◽  
Protein Loading ◽  
Reversible Addition

A novel zwitterionic triblock copolymer of poly(dimethylamino carbonate)-polycaprolactone-poly((2-(methacryloyloxy)ethyl)dimethyl-(3-sulfopropyl)ammonium) [PAC(DMA)-PCL-PMDMSA] was designed and synthesized via sequential ring-opening polymerization (ROP) and reversible addition-fragmentation chain transfer (RAFT) polymerization successively. The 1H NMR and...

Enzyme catalysis-induced RAFT polymerization in water for the preparation of epoxy-functionalized triblock copolymer vesicles

2018 ◽  
Vol 9 (39) ◽  
pp. 4908-4916 ◽  
Author(s):  
Qin Xu ◽  
Yuxuan Zhang ◽  
Xueliang Li ◽  
Jun He ◽  
Jianbo Tan ◽  
...  
Keyword(s):  
Enzyme Catalysis ◽  
Triblock Copolymer ◽  
Room Temperature ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Reversible Addition

Enzyme catalysis-induced aqueous reversible addition–fragmentation chain transfer (RAFT) polymerization was conducted at room temperature for the preparation of epoxy-functionalized triblock copolymer vesicles.

Synthesis, self-assembly and self-healing properties of organic–inorganic ABA triblock copolymers with poly(POSS acrylate) endblocks

2019 ◽  
Vol 10 (19) ◽  
pp. 2424-2435 ◽  
Author(s):  
Bingjie Zhao ◽  
Sen Xu ◽  
Sixun Zheng
Keyword(s):  
Self Assembly ◽  
Triblock Copolymer ◽  
Chain Transfer ◽  
Triblock Copolymers ◽  
Raft Polymerization ◽  
Self Healing ◽  
Reversible Addition ◽  
Aba Triblock Copolymer

A novel organic–inorganic ABA triblock copolymer with a poly(acrylate amide) (PAA) midblock and poly(POSS acrylate) [P(POSS)] endblocks was synthesized via sequential reversible addition–fragmentation chain transfer (RAFT) polymerization.

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