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Issue 24, 2019
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A direct functionalization of polyolefins for blend compatibilization by an insertion of 1,1-bis(phenylsulfonyl)ethylene (BPSE)

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Abstract

Using recently developed C–H insertion chemistry, a mild post-modification of polyethylene (PE), hyperbranched polyethylene (HBPE) and isotactic polypropylene (iPP) to insert phenylsulfonyl groups was performed. The Michael-type radical addition applies 2-chloroanthroquinone (2-CIAQ) as a C–H bond-cleaving photocatalyst and 1,1-bis(phenylsulfonyl)ethylene (BPSE) as the olefinic substrate. The reactions were performed in solution with various feed ratios and the products were characterized by multi-instrumental analysis. The modification is a convenient one-step introduction of aromatic moieties along polyolefin chains. By optimization of the reaction conditions, as many as 18.5 graft units of BPSE were introduced per 100 ethylene repeating units. The modified samples were successfully demonstrated to act as a compatibilizer between blends of PE/iPP and polystyrene (PS) as verified by scanning electron microscopy (SEM).

Graphical abstract: A direct functionalization of polyolefins for blend compatibilization by an insertion of 1,1-bis(phenylsulfonyl)ethylene (BPSE)

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Publication details

The article was received on 24 Apr 2019, accepted on 05 May 2019 and first published on 10 May 2019


Article type: Paper
DOI: 10.1039/C9PY00599D
Polym. Chem., 2019,10, 3325-3333

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    A direct functionalization of polyolefins for blend compatibilization by an insertion of 1,1-bis(phenylsulfonyl)ethylene (BPSE)

    C. M. Plummer, H. Zhou, S. Li, H. Zhong, Z. Sun, C. Bariashir, W. Sun, H. Huang, L. Liu and Y. Chen, Polym. Chem., 2019, 10, 3325
    DOI: 10.1039/C9PY00599D

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