Synthesis of hypergrafted poly[4-(N,N-diphenylamino)methylstyrene] through tandem anionic-radical polymerization of radical-inimer

Autor: Minglu Huang, Jianmin Lu, Bingyong Han, Xianhong Zhang, Wantai Yang
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Designed Monomers and Polymers, Vol 20, Iss 1, Pp 476-484 (2017)
Druh dokumentu: article
ISSN: 1568-5551
15685551
DOI: 10.1080/15685551.2017.1365577
Popis: In this paper, we present a tandem anionic-radical approach for synthesizing hypergrafted polymers. We prepared 4-(N,N-diphenylamino)methylstyrene (DPAMS) as a new radical-based inimer. Linear PDPAMS was prepared through anionic polymerization. Hypergrafted PDPAMS was synthesized through the self-condensing vinyl polymerization of DPAMS with linear PDPAMS. The linear backbone of PDPAMS, which incorporated latent radical initiating sites, served as a ‘hyperlinker’ to link hyperbranched side chains. The molecular weights of hypergrafted polymers increased as the length of the linear backbone chain increased. The hypergrafted structure of the resulting polymer was confirmed using a conventional gel permeation chromatograph apparatus equipped with a multiangle light scattering detector, nuclear magnetic resonance, differential scanning calorimetry, and thermogravimetric analysis. This strategy can be applied to synthesize other complex architectures based on hyperbranched polymers by changing the structure of a polymer backbone through anionic polymerization.
Databáze: Directory of Open Access Journals
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