1. Synthesis and Design of Novel Electro-Active, Site-Isolated Nanostructures
Chinessa Adkins and Eva Harth*, Department of Chemistry, Vanderbilt University, Nashville, TN, 37235
Nanoparticle through
Intramolecular chain
Collapse process:
5-7 nm ‘Organic Quantum Dot’
ABA Block Copolymer
We present the synthesis of polymeric nanoparticles from single ABA type block copolymers in an intramolecular-chain process to result 3-D architectures that confine a single chain of conducting copolymers.
ABA triblock copolymers were prepared from conducting polymers such as fluorene homopolymers and fluorene/thiophene copolymers designed as telechelic macroinitiators to facilitate nitroxide mediated living free radical polymerization methods.
ABA Block Copolymer
The photoluminescence measurements illustrates the influence of the molecular weight of the A block to be crucial for the site-isolation of the embedded conducting polymer block in the resulting nanoparticles with increased quantum efficiencies of 6 %.