

FOLLOWUS
a.State Key Laboratory of Luminescent Materials and Devices, Center for Aggregation-Induced Emission, South China University of Technology, Guangzhou 510641, China
b.Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
msrrhu@scut.edu.cn (R.H.)
tangbenz@ust.hk (B.Z.T.)
Received:01 January 2019,
Revised:2019-1-19,
Accepted:21 January 2019,
Online First:15 February 2019,
Published:2019-04
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Citation: Huang, Y.; Chen, P.; Wei, B.; Hu, R.; Tang, B. Z. Aggregation-induced emission-active hyperbranched poly(tetrahydro-pyrimidine)s synthesized from multicomponent tandem polymerization. Chinese J. Polym. Sci. 2019, 37, 428–436
Yuzhang Huang, Ping Chen, Bo Wei, et al. Aggregation-induced Emission-active Hyperbranched Poly(tetrahydro-pyrimidine)s Synthesized from Multicomponent Tandem Polymerization[J]. Chinese Journal of Polymer Science, 2019, 37(4): 428-436.
Citation: Huang, Y.; Chen, P.; Wei, B.; Hu, R.; Tang, B. Z. Aggregation-induced emission-active hyperbranched poly(tetrahydro-pyrimidine)s synthesized from multicomponent tandem polymerization. Chinese J. Polym. Sci. 2019, 37, 428–436 DOI: 10.1007/s10118-019-2230-3.
Yuzhang Huang, Ping Chen, Bo Wei, et al. Aggregation-induced Emission-active Hyperbranched Poly(tetrahydro-pyrimidine)s Synthesized from Multicomponent Tandem Polymerization[J]. Chinese Journal of Polymer Science, 2019, 37(4): 428-436. DOI: 10.1007/s10118-019-2230-3.
Hyperbranched polymer with highly branched three-dimensional topological structure
a large number of end groups
and multifaceted functionalities have gained much attention
while polymers with aggregation-induced emission (AIE) properties become a group of popular luminescent materials recently. The design and synthesis of AIE-active hyperbranched polymers
which combine the advantages of these two types of materials
are attractive but challenging. In this work
four hyperbranched poly(tetrahydropyrimidine)s were synthesized from the metal-free room temperature multicomponent tandem polymerization of diester group-activated internal alkyne
polyfunctional aromatic amines
and formaldehyde in methanol under the catalysis of acetic acid. Through different monomer combination and controlling the monomer loading order
hyperbranched polymers with various topological structures as well as sequences of different functional groups in the polymer backbone were obtained with high molecular weights (up to 3.0 × 10
4
g/mol) in high yields (up to 98%). The hyperbranched poly(tetrahydropyrimidine) emitted faintly in solution
while its luminescence was notably enhanced in the aggregated state
suggesting its typical aggregation-induced emission property. It is anticipated that the multicomponent polymerization may provide a synthetic platform for the construction of hyperbranched polyheterocycles with diverse structures and functionalities.
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