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Journal of Polymer Science Part B: Polymer Physics, Vol.42, No.16, 2931-2941, 2004
Colloidal star polymers: Models for studying dynamically arrested states in soft matter
The use of well-defined macromolecular assemblies with tunable interactions represents the key for exploring the regime of soft-material behavior between hard spheres and polymer coils. Colloidal stars are ideal choices for such a formidable task and especially for shedding light on the formation and properties of dynamically arrested states. In this brief review, we demonstrate the rich variety of kinetic frustration phenomena that can be encountered with such ultrasoft particles. We address two specific examples in particular: the reversible vitrification upon heating and the melting of star gels upon the addition of linear polymers. (C) 2004 Wiley Periodicals, Inc.