Synthesis and Association Behaviour of Linear Block Copolymers with Different Microstructures but the Same Composition
✍ Scribed by Christof Schmitz; Ahmed Mourran; Helmut Keul; Martin Möller
- Book ID
- 102486665
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 452 KB
- Volume
- 209
- Category
- Article
- ISSN
- 1022-1352
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✦ Synopsis
Abstract
The di‐ and triblock copolymers, P(MAA)__‐b‐P(MMA), P(MAA)‐b‐P(BMA), P(MAA)‐b‐P(MAA‐co‐MMA)‐b‐P(MMA) and P(MAA)‐b‐P(MAA‐co‐BMA)‐b‐__P(BMA), were synthesised via ATRP in order to study the association behaviour in water via polyelectrolyte titration, fluorescence spectroscopy, dynamic light scattering and scanning force microscopy. P(BMA) block copolymers spontaneously self‐associate into micelles whereas for P(MMA) block copolymers addition of salt is necessary to induce aggregation. Principally, the hydrodynamic radius of the micelles decreases from di‐ to triblock copolymer which was attributed to a different conformation of the random middle block at the core/corona interface.
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