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Title

Scalable Synthesis of Photoluminescent Single‐Chain Nanoparticles by Electrostatic‐Mediated Intramolecular Crosslinking.

Authors

Shao, Yue; Wang, Yong‐Lei; Tang, Zian; Wen, Zhendong; Chang, Chiawei; Wang, Chunyu; Sun, Dayin; Ye, Yilan; Qiu, Dong; Ke, Yubin; Liu, Feng; Yang, Zhenzhong

Abstract

We report the large‐scale synthesis of photoluminescent single‐chain nanoparticles (SCNPs) by electrostatic‐mediated intramolecular crosslinking in a concentrated solution of 40 mg mL−1 by continuous addition of the free radical initiator. Poly(vinyl benzyl chloride) was charged by quaternization with vinyl‐imidazolium for the intramolecular crosslinking by using 2,2‐dimethoxy‐2‐phenylacetophenone (DMAP) as the radical initiator. Under the electrostatic repulsion thus interchain isolation, the intrachain crosslinking experiences the transition from coil through pearl‐necklace to globular state. The SCNPs demonstrate strong photoluminescence in the visible range when the non‐emissive units are confined thereby. Composition and microstructure of the SCNPs are tunable. The photoluminescent tadpole‐like Janus SCNP can be used to selectively illuminate interfacial membranes while stabilizing the emulsions.

Subjects

BENZYL chloride; NANOPARTICLES; VINYL chloride; FREE radicals; PHOTOLUMINESCENCE

Publication

Angewandte Chemie, 2022, Vol 134, Issue 27, p1

ISSN

0044-8249

Publication type

Academic Journal

DOI

10.1002/ange.202205183

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