Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7637
Title: Synthesis and characterization of novel high temperature structural adhesives based on nadic end capped MDA-BTDA-ODA copolyimide
Authors: Acar, Oktay
Varış, Serhat
Işık, Tuğba
Tirkeş, Seha
Demir, Mustafa Muammer
Keywords: Adhesives
High temperature
Mechanical properties
Polyimides
Thermodynamic stability
Issue Date: Oct-2018
Publisher: IOP Publishing Ltd.
Source: Acar, O., Varış, S., Işık, T., Tirkeş, S., and Demir, M. M. (2018). Synthesis and characterization of novel high temperature structural adhesives based on nadic end capped MDA-BTDA-ODA copolyimide. Materials Research Express, 5(10). doi:10.1088/2053-1591/aadb2e
Abstract: A series of novel copolyimide structural adhesives were synthesized using 4,4′-diaminodiphenylmethane (MDA), 3,4′-oxydianiline (ODA) and 3,3′,4,4′-benzophenonetetracarboxylic acid dianhydride (BTDA) as co-monomers, and nadic anhydride as an end cap reagent. The adhesives with different MDA and ODA contents were examined in terms of their structure, thermal stability, mechanical properties, and adhesive performance. They have glass transition temperatures (T g) about 400 °C, with thermal stability up to 500 °C. The effect of diamine monomer compositions on adhesion performance and processability of the copolyimides were studied. The copolyimides exhibited adhesion strength up to 16.3 MPa at room temperature. Nadic end capped MDA-BTDA-ODA copolyimide resins gained adjustable and controllable processability with the addition of ether bridged aromatic segments. The copolyimide adhesive with equimolar composition of MDA:ODA is distinguished form the both commercial PMR-15 and LARC RP-46 polyimides in terms of its better processability and mechanical performance.
URI: https://doi.org/10.1088/2053-1591/aadb2e
https://hdl.handle.net/11147/7637
ISSN: 2053-1591
2053-1591
Appears in Collections:Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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