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- Title
Improving Poly(ethylene terephthalate) Through Self-nucleation.
- Authors
Joijode, Abhay S.; Hawkins, KaDesia; Tonelli, Alan E.
- Abstract
As-received poly(ethylene terephthalate) (asr-PET) may be reorganized by precipitation from trifluoroacetic acid upon gradual addition to a large excess of rapidly stirred acetone (p-PET). Unlike asr-PET, p-PET repeatedly crystallizes rapidly from the melt, and can be used in small quantities (a few %) as an effective self-nucleating agent to control and improve the bulk semi-crystalline morphology and properties of asr-PET. Nuc-PET film has significantly increased hardness and Young's modulus and is much less permeable to CO2, while its un-drawn fibers exhibit higher tenacities and moduli. Because nuc-PET contains no incompatible additives, it may be readily recycled.
- Subjects
POLYETHYLENE terephthalate; CRYSTALLINE polymers; PRECIPITATION (Chemistry); TRIFLUOROACETIC acid; ACETONE
- Publication
Macromolecular Materials & Engineering, 2013, Vol 298, Issue 11, p1190
- ISSN
1438-7492
- Publication type
Article
- DOI
10.1002/mame.201200398