Polyacrylamide-scaffold adhesive bearing multiple benzene rings forming CH/π  interactions with polyolefin

Taiki Yamate1*, Hiroshi Suzuki1, Takayuki Fujiwara2, Toru Yamaguchi2, Motohiro Akazome3

1Nippon Soda Co. Ltd., Chiba Research Center 12-54 Goi-minamikaigan, Ichihara, Chiba 290-0045, Japan

2Division of Computational Chemistry, Transition State Technology Co. Ltd. 2-16-1, Tokiwadai, Ube, Yamaguchi 755-8611, Japan

3Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoicho, Inageku, Chiba 263-8522, Japan

Adv. Mater. Lett., 2018, 9 (7), pp 526-530

DOI: 10.5185/amlett.2018.2055

Publication Date (Web): Jun 14, 2018

E-mail: t.yamate@nippon-soda.co.jp

Abstract


Adhesion to chemically inert materials (CIM) through non-covalent interactions without surface modifications represents a formidable challenge in adhesion science. We report herein a rigid poly(acrylamide) bearing multiple benzene rings in its side chains that can strongly adhere to the chemically inert surface of the polyolefin without the need for surface modifications. This adhesive is rationally designed based on our previous findings. The adhesion to polyolefin is triggered by the formation of multiple CH/p interactions at the macroscopic interface. The adhesion strength is far greater than that of adhesions using surface modifications or commercially available polyolefin adhesives. In this study, the adhesion mechanism is carefully analyzed by experimental and theoretical studies. We anticipate that this study could address the long-standing issue of achieving strong adhesion to CIMs without requiring surface modifications and pave the way for future research into the development of new adhesives for CIMs. 

Keywords

CH/p interactions, non-covalent interactions, adhesive, adhesion, polyolefin.

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