Effects of copolymerization temperatures on structure and properties of melt-spinnable acrylonitrile-methyl acrylate copolymers and fibers
Macromolecular Research, ISSN: 1598-5032, Vol: 18, Issue: 11, Page: 1060-1069
2010
- 29Citations
- 9Captures
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Article Description
A series of 85/15 AN/MA copolymers (acrylonitrile-methyl acrylate copolymers with feed ratio of 85/ 15 mol%) were synthesized by aqueous precipitation polymerization at 20, 30, and 40 °C, and the copolymers were used to produce a series of fibers by melt spinning. The copolymers and fibers were characterized by element analysis (EA), nuclear magnetic resonance ( H NMR and C NMR), capillary rheometry, differential scanning calorimetry (DSC), X-ray diffraction (XRD), and scanning electronic microscopy (SEM). The average length of the contiguous AN units synthesized at 30 °C had a maximum value of 10.53. Aqueous polymerization at 30 °C resulted the lowest glass transition temperature (T) of 87.1 °C, the lowest melting point (T) of 154.5 °C, and the highest decomposition temperature (T) of 325.0 °C. 85/15 AN/MA prepared at 20 and 30 °C exhibited a better fluidity at 210 °C. The ideal reaction temperatures for melt processing of the AN/MA copolymers were found to be 20 and 30 °C.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=79951791122&origin=inward; http://dx.doi.org/10.1007/s13233-010-1115-7; http://link.springer.com/10.1007/s13233-010-1115-7; http://link.springer.com/content/pdf/10.1007/s13233-010-1115-7; http://link.springer.com/content/pdf/10.1007/s13233-010-1115-7.pdf; http://link.springer.com/article/10.1007/s13233-010-1115-7/fulltext.html; http://www.springerlink.com/index/10.1007/s13233-010-1115-7; http://www.springerlink.com/index/pdf/10.1007/s13233-010-1115-7; https://dx.doi.org/10.1007/s13233-010-1115-7; https://link.springer.com/article/10.1007/s13233-010-1115-7
Springer Science and Business Media LLC
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