NDLI: Synthesis and characterization of semiaromatic copolyamide 10T/1014 with high performance and flexibility

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Synthesis and characterization of semiaromatic copolyamide 10T/1014 with high performance and flexibility

Content Provider	Taylor & Francis Online
Author	Ren, Zhonglai Zou, Guangji Feng, Wutong Wang, Pingli Ji, Junhui
Abstract	Poly (decamethylene terephthalamide) (PA10T) is a kind of engineering plastics with high strength and high modulus, but one of its disadvantages is its low elongation at break. In order to improve the flexibility of PA10T, one aliphatic comonomer with a long alkyl chain is introduced to the molecular chain of PA10T. Then long chain semiaromatic copolyamides 10T/1014 were synthesized with different contents of 1014 units by polycondensation reaction of 1,10-diaminodecane, terephthalic acid and 1,12-dodecanedicarboxylic acid in deionized water. The intrinsic viscosities of the resultant polyamides ranged from 0.90 to 1.03 dL/g were obtained. The chemical and crystal structures of the copolymers were characterized by FTIR, 1H-NMR and WAXD. These copolyamides exhibited outstanding thermal properties with melting points range of 306–295 °C and degradation temperatures range of 479–472 °C at maximum degradation rate, and also have a wider processing window than PA10T. The tensile strength of PA10T/1014 copolymers decreased gradually from 80.02 to 72.95 MPa as the content of 1014 units increasing from 5 to 20 mol %, while the elongation at break increased significantly from 57 to 150%. The moisture content of 10T/1014 copolyamides decreased with increasing the 1014 unit contents. It suggests that 10T/1014 copolyamides could be a kind of promising heat-resistant engineering thermoplastic in the future applications.
Starting Page	33
Ending Page	42
Page Count	10
File Format	PDF HTM / HTML
ISSN	15685551
DOI	10.1080/15685551.2018.1446278
Journal	Designed Monomers and Polymers
Volume Number	21
Issue Number	1
Language	English
Publisher	Taylor & Francis
Publisher Date	2018-03-12
Access Restriction	Open
Subject Keyword	Semiaromatic polyamide Long chain PA10T Heat resistance
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry Chemical Engineering Polymers and Plastics

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