Alternating polyester/fluoroalkene copolymers: Combining high hydrophobicity with degradability

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Abstract

2-Methylene-1,3-dioxepane (MDO) was copolymerized with fluoroalkenes (R fCH=CH 2) using azobis(isobutyronitrile) AIBN as an initiator. NMR spectroscopy confirmed that the obtained polymers are effectively alternating copolymers of caprolactone and fluoroalkene. Angle resolved XPS of copolymer films revealed that the outer layers have higher CF x:COO ratio relative to the subsurface, indicating that the perfluoroalkyl tails segregate to the air-side, thereby presenting a hydrophobic surface with water contact angle as high as 130°. Blends of this material with polycaprolactone and polycarbonate polymers also form hydrophobic films. In the presence of trifluoroacetic acid, the copolymer undergoes complete degradation through hydrolysis.

Original languageEnglish (US)
Pages (from-to)1225-1232
Number of pages8
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume44
Issue number3
DOIs
StatePublished - Feb 1 2006

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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