Single Monomer for Multiple Tasks: Polymerization
Induced Self-Assembly, Functionalization and Cross-Linking, and Nanoparticle
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Abstract
Efficient
preparation of multifunctional nano-objects with controlled
morphologies in one step at high concentrations is synthetically challenging,
yet is highly desirable, in a broad range of materials applications.
Herein, we address this synthetic hurdle by introducing a single commodity
monomer 2-(acetoacetoxy)ethyl methacrylate (AEMA) to realize multiple
functions. Facile preparation of both nanospheres and vesicles via
polymerization induced self-assembly at concentrations of 20–30%
provided defined polymeric nanomaterials with reactive handles inherent
to the AEMA units. High-yielding keto-alkoxylamine chemistry was utilized
to decorate and cross-link the nano-objects. Nanoparticle loading
into the designated location within both nano-objects was exemplified
with in situ formation of silver nanoparticles. The concept of using
a single monomer capable of both morphology control and multifunctionalization
is expected to offer significant opportunities in functional nanomaterials