Monday, July 30, 2012

Core–Shell Nanogels by RAFT Crosslinking Polymerization: Synthesis and Characterization

Journal of Polymer Science Part A: Polymer Chemistry
A synthetic methodology is described for the preparation of core–shell nanogels by reversible addition-fragmentation chain transfer. Well-defined macro chain transfer agents (macro-CTA's) were prepared in a first step using monomers that yield sensitive polymers. In the second step, a crosslinker alone or with the addition of a functionalized comonomer were used to form a crosslinked core. The ratio of crosslinker to macro-CTA is crucial to yield nanogels.

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