Reversible photoreaction of C60-containing poly(vinyl alcohol)

Yun Chen, Chang Hsin Tsai

研究成果: Article同行評審

12 引文 斯高帕斯(Scopus)

摘要

Poly(vinyl alcohol) (PVA) was reacted with strong base NaH to convert its pendant hydroxy to oxy anions, followed with nucleophilic addition to buckminster-fullerene-C60. The resulted PVA(C60-Na+)n products were then converted to PVA(C60H)n by stirring with a strong acid cation exchanger of the H+ form. The reduced viscosities of PVA(C60H)n decreases with amount of C60, and are between 0.38 and 0.66 dL/g compared to 1.97 dL/g of the original PVA. Repeated photocrosslinking under 300 nm light and photocleavage under 254 nm light of these C60-containing PVAs were investigated in DMSO by tracing their UV absorption variations at 325 nm (maximum absorption of C60H). It is confirmed that both PVA(C60H)n exhibit excellent reversibility at least under the observed three cycles.

原文English
頁(從 - 到)605-611
頁數7
期刊Journal of Applied Polymer Science
70
發行號3
DOIs
出版狀態Published - 1998 十月 17

All Science Journal Classification (ASJC) codes

  • 化學 (全部)
  • 表面、塗料和薄膜
  • 聚合物和塑料
  • 材料化學

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