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- Title
Synthesis and characterization of poly (1,6‐hexamethylene oxamide‐co‐m‐xylene oxamide) copolymers.
- Authors
Yang, Tingting; Mutua, Fredrick Nzioka; Gao, Yuanbo; Li, Shuxiu; Dong, Hao; Zhu, Bo; He, Yong
- Abstract
To modify the properties of poly (hexamethylene oxamide) (PA62), m‐xylylene diamine (MXD) was introduced into the polyamide main chain. A series of high molecular weight PA62/MXD2 were synthesized via a two‐step method. The chemical structure of polymer was analyzed by Fourier transform infrared spectroscopy and proton nuclear magnetic resonance spectroscopy, and the results confirmed the formation of PA62/MXD2. DSC test showed that the Tm of the copolymers were decreased as the molar contents of MXD in the range of 10 to 50 mol %. TGA analysis revealed that the thermal stability of the copolymers compared well with commercial PA6. Wide‐angle X‐ray diffraction studies suggested the copolymers with MXD content of 0 to 10 mol % possessed high crystallinity. The water uptake measurements were monitored, and the saturated water absorptions were found to be lower than 2.5 wt %. These properties gave them a competitive edge for application where precise dimensional stability and high thermal resistance properties are required.
- Subjects
CYCLOHEXANE derivatives; COPOLYMERS; FOURIER transform infrared spectroscopy; THERMAL resistance; CRYSTALLINITY
- Publication
Polymers for Advanced Technologies, 2018, Vol 29, Issue 12, p2943
- ISSN
1042-7147
- Publication type
Article
- DOI
10.1002/pat.4414