Novel Michael addition networks containing poly(propylene glycol) telechelic oligomers

Brian D. Mather, Kevin M. Miller, Timothy Edward Long*

*この研究の対応する著者

研究成果: Article査読

24 被引用数 (Scopus)

抄録

Polypropylene glycol) oligomers with molecular weights ranging from 1000 to 8000 g·mol-1 were endfunctionalized with acetoacetate groups and subsequently crosslinked using carbon-Michael addition with PEG diacrylate. Gel fraction analysis, DMA, TGA, tensile, and swelling measurements were utilized to characterize the networks. The thermomechanical properties of the networks were analyzed with respect to the molecular weight between crosslink points (Mc) and the critical molecular weight for entanglement (Me). Sampling experiments during crosslinking revealed the evolution of molecular weight with time and monomer conversion. Kinetic analyses of the Michael additions were performed using 1H NMR spectroscopy, and the influence of basic catalyst and concentration was elucidated.

本文言語English
ページ(範囲)1324-1333
ページ数10
ジャーナルMacromolecular Chemistry and Physics
207
15
DOI
出版ステータスPublished - 2006 8月 2
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 物理化学および理論化学
  • ポリマーおよびプラスチック
  • 有機化学
  • 材料化学

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