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Keywords:

  • 2D NMR;
  • t-BOC;
  • e-beam resists;
  • novolac resins;
  • copolymers

Abstract

Synthesis of a m/p-cresol–based novolac resin and its subsequent esterification using di-tert-butyl dicarbonate (t-BOC) is described. The product has been characterized using techniques of FTIR spectroscopy, one dimensional 1H NMR, 13C NMR, and DEPT-135 spectra. Two dimensional NMR experiments like, COSY, HSQC, and HMBC have been used for exhaustive probing of the microstructural details of the derivatized copolymer. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009