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Can I read Synthesis and Self-Assembly of pH-Responsive Amphiphilic Poly(dimethylaminoethyl methacrylate)-block-Poly(pentafluorostyrene) Block Copolymer in Aqueous Solution on EtoBox?
Synthesis and Self-Assembly of pH-Responsive Amphiphilic Poly(dimethylaminoethyl methacrylate)-block-Poly(pentafluorostyrene) Block Copolymer in Aqueous Solution by Beng H. Tan; Chakravarthy S. Gudipati; Hazrat Hussain; Chaobin He; Ye Liu; Thomas P. Davis is a Materials Science article available to read on EtoBox.
What is Synthesis and Self-Assembly of pH-Responsive Amphiphilic Poly(dimethylaminoethyl methacrylate)-block-Poly(pentafluorostyrene) Block Copolymer in Aqueous Solution about?
## Abstract We report the synthesis of a novel pH‐responsive amphiphilic block copolymer poly(dimethylaminoethyl methacrylate)‐__block__‐poly(pentafluorostyrene) (PDMAEMA‐__b__‐PPFS) using RAFT‐mediated living radical polymerization. Copolymer micelle formation, in aqueous solution, was investigated using fluorescence spectroscopy, static and dynamic light scattering (SLS and DLS), and transmission electron microscopy (TEM). DLS and SLS measurements revealed that the diblock copolymers form spherical micelles with large aggregation numbers, __N__~agg~ ≈ 30 where the dense PPFS core is surrounded by dangling PDMAEMA chains as the micelle corona. The hydrodynamic radii, __R__~h~ of these micelles is large, at pH 2–5 as the protonated PDMAEMA segments swell the micelle corona. Above pH 5, the PDMAEMA segments are gradually deprotonated, resulting in a lower osmotic pressure and enhanced hydrophobicity within the micelle, thus decreasing the __R__~h~. However, the radius of gyration, __R__~g~ remains independent of pH as the dense PPFS cores predominate. magnified image
Who reads Synthesis and Self-Assembly of pH-Responsive Amphiphilic Poly(dimethylaminoethyl methacrylate)-block-Poly(pentafluorostyrene) Block Copolymer in Aqueous Solution?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Beng H. Tan; Chakravarthy S. Gudipati; Hazrat Hussain; Chaobin He; Ye Liu; Thomas P. Davis
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 1022-1336)
- Published
- 2009
- Language
- EN
- Field
- Materials Science (Physical Sciences)