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High shape‐memory effect of hindered phenol/nitrile–butadiene rubber composites by forming hydrogen bonding
Author(s) -
Hu ShiKai,
Shou Tao,
Chen Si,
Zhao XiuYing,
Lu YongLai,
Zhang LiQun
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.48911
Subject(s) - natural rubber , nitrile , composite material , materials science , nitrile rubber , polymer , glass transition , hydrogen bond , shape memory alloy , phenol , shape memory polymer , composite number , molecule , chemistry , organic chemistry
To widen the type and scope of use of shape memory polymers (SMPs), we added hindered phenol (AO‐80) to nitrile–butadiene rubber (NBR) to gain a group of AO‐80/NBR rubber composites. The glass transition temperature ( T g ), structure, mechanical properties, and shape memory properties of the AO‐80/NBR rubber composites were characterized. It was concluded that the dispersion of AO‐80 in the NBR matrix was homogeneous and intra‐molecular hydrogen bonds were formed between the hydroxyl groups (OH) of AO‐80 and the cyano groups (CN) of NBR molecular chain. The dosage of AO‐80 added could be changed to tune the T g . AO‐80/NBR rubber composites revealed outstanding shape fixity and shape recovery. The method for tuning the T g of AO‐80/NBR rubber composites will provide an idea for the fabrication and design of new SMPs. © 2020 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48911.