Related Experiment Video
Updated: Mar 9, 2026
10:53
Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions
Published on: October 10, 2016
14.7K
Perfluorocyclobutyl Aryl Ether-Based ABC Amphiphilic Triblock Copolymer
Binbin Xu1, Wenqiang Yao1, Yongjun Li1
1Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People's Republic of China.
Scientific Reports
|December 22, 2016
Summary
Fluorine-containing triblock copolymers were synthesized for drug delivery. These novel polymers self-assemble into micelles capable of encapsulating both hydrophilic and hydrophobic agents.
Area of Science:
- Polymer Chemistry
- Materials Science
- Nanotechnology
Background:
- Amphiphilic block copolymers are crucial for self-assembly in aqueous media.
- Fluorinated polymers offer unique properties for advanced applications.
- Controlled polymerization techniques enable precise synthesis of complex polymer architectures.
Purpose of the Study:
- To synthesize novel fluorine-containing ABC triblock copolymers.
- To investigate the self-assembly behavior and micelle formation of these copolymers.
- To evaluate the encapsulation capabilities of the formed micelles for hydrophilic and hydrophobic agents.
Main Methods:
- Synthesis of poly(ethylene glycol)-b-poly(p-(2-(4-biphenyl)perfluorocyclobutoxy)phenyl methacrylate)-b-poly(methacrylic acid) (PEG-b-PBPFCBPMA-b-PMAA) triblock copolymers using successive atom transfer radical polymerization (ATRP).
- Preparation of PEG-Br macroinitiators and subsequent ATRP of BPFCBPMA and tert-butyl methacrylate (tBMA).
- Hydrolysis of PtBMA to PMAA and characterization of critical micelle concentrations (cmc) and self-assembly via fluorescence spectroscopy and transmission electron microscopy.
Main Results:
- Successfully synthesized PEG-b-PBPFCBPMA-b-PMAA triblock copolymers with controlled molecular weights.
- Observed the formation of large compound micelles and bowl-shaped micelles in aqueous solutions.
- Demonstrated the ability of these micelles to encapsulate both hydrophilic (Rhodamine 6G) and hydrophobic (pyrene) agents simultaneously or separately.
Conclusions:
- The synthesized fluorine-containing amphiphilic triblock copolymers exhibit excellent self-assembly properties.
- The resulting micelles are effective nanocarriers for co-delivery of diverse therapeutic agents.
- This study provides a promising platform for developing advanced drug delivery systems.
More Related Videos
Related Concept Videos
01:24Characteristics and Nomenclature of Copolymers
3.5K
Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating units that come from different monomers. The process of synthesizing a polymer from different monomer species is called copolymerization. When two monomers are involved, the polymer is known as a bipolymer. Polymers with three and four monomers are termed terpolymers and quaterpolymers, respectively. Figure 1 depicts the copolymerization of...
3.5K
01:30Micelles
96
Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...
96
01:27Surface Active Agents
53
Surfactants, named for their behavior at interfaces, positively adsorb at the interfaces of two phases, reducing interfacial tension. Their versatility as emulsifiers, detergents, and foaming agents stems from this ability. Surfactants, often termed amphiphiles, share the property of amphipathy, with molecules having both hydrophilic and hydrophobic portions. The hydrophilic part is called the head, and the hydrophobic part, including an elongated alkyl substituent, forms the tail.Surfactants...
53