Narrowly-Distributed Conjugated Polymers Synthesized through Suzuki Polymerization with Palladium(II) N-Heterocyclic Carbene Complex Confined in Dendritic Mesoporous Silica Nanoparticles

Yusen Wu; Yanchao Zhu; Jie Wang; Zhikun Shang; Huixian Jin; Yun Ding; Aiguo Hu

doi:10.1002/chem.202102979

Narrowly-Distributed Conjugated Polymers Synthesized through Suzuki Polymerization with Palladium(II) N-Heterocyclic Carbene Complex Confined in Dendritic Mesoporous Silica Nanoparticles

Chemistry. 2022 Jan 13;28(3):e202102979. doi: 10.1002/chem.202102979. Epub 2021 Dec 2.

Authors

Yusen Wu¹, Yanchao Zhu¹, Jie Wang¹, Zhikun Shang¹, Huixian Jin¹, Yun Ding¹, Aiguo Hu¹

Affiliation

¹ Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China.

PMID: 34750897
DOI: 10.1002/chem.202102979

Abstract

A catalytic heterogenous Suzuki polymerization method was developed by confining the Pd(II)-catalyzed cross coupling reactions to take place exclusively in the nanochannels of dendritic mesoporous silica nanoparticles. Conjugated polymers with various monomer combinations, including donor-acceptor structures, were obtained in high yields. The molecular weights of the obtained polymers were well controlled with narrow molecular weight distributions (PDI value down to 1.13). All the polymeric products were highly soluble in common organic solvents, granting them with high processability. All the features of this confined Suzuki polymerization method endow the conjugated polymers great potential in optoelectronic applications.

Keywords: N-heterocyclic carbene; Suzuki polymerization; conjugated polymers; heterogenous catalysis; mesoporous silica.

Abstract

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