Optically active hollow nanoparticles constructed by chirally helical substituted polyacetylene
作者： Jiangfeng Lin , Huajun Huang , Mu Wang , Jianping Deng
DOI: 10.1039/C5PY01945A
关键词:
摘要: Numerous vinyl polymer-based hollow particles have been intensively explored, however it still remains a big academic challenge to prepare their counterparts derived from acetylenics. Excitingly, we achieved the first nanoparticles constructed by helical substituted polyacetylene through seed emulsion polymerization approach. Alkynylated SiO2 served as emulsion, in which acetylene monomer (chiral M1 or achiral M2) and cross-linker underwent copolymerization using (nbd)Rh+B−(C6H5)4 catalyst. The polymerizations led core/shell structured nanoparticles. After etching cores, were transformed into architectures. Both confirmed TEM. CD UV-vis absorption spectra demonstrated conformations of polyacetylenes forming Thermogravimetric analysis showed high stability present study establishes novel class particles, particular ones showing optical activity. preparation strategy provides versatile platform for developing analogous
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