Three-dimensionally packed nanohelical phase in chiral block copolymers.

نویسندگان

  • Rong-Ming Ho
  • Yeo-Wan Chiang
  • Chi-Chun Tsai
  • Chu-Chieh Lin
  • Bao-Tsan Ko
  • Bor-Han Huang
چکیده

Chirality-driven microphase-separated morphology, poly(l-lactide) (PLLA) left-handed nanohelices hexagonally packed in PS matrix, was obtained from chiral diblock copolymers, poly(styrene)-b-poly(l-lactide). This is perhaps for the first time; the helical superstructures of chiral block copolymers were generated in the bulk and self-assembled to a two-dimensionally (2D) packed lattice. Now, the analyses of block copolymer thermodynamics should be complicated by the chiral entities of constituted components. Orderly packed nanohelical channels can be obtained after hydrolysis, and this provides new opportunities for block copolymer applications in the fields of nanosciences.

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عنوان ژورنال:
  • Journal of the American Chemical Society

دوره 126 9  شماره 

صفحات  -

تاریخ انتشار 2004