No; it cannot be achieved by calcination because PPy is stable only up to 60 C as is reported in its method of preparation as reported in following paper:
All one can do is to keep the the Zn(OH)2/PPy immersed in 0.11-0.43 M NaOH( at pH=13.0-13.2),the heating rate to the isothermal-exposure temperature was fixed at 5 K/min. Temperature was monitored with a thermocouple up to 60C.
For details[ Look in page-1811(RHS-Experimental; need to be followed very minutely):
Russian Journal of Inorganic Chemistry, 2007, Vol. 52, No. 12, pp. 1811–1816
ZnO Formation under Hydrothermal Conditions from Zinc Hydroxide Compounds with Various Chemical Histories
A. S. Shaporev, V. K. Ivanov, A. E. Baranchikov, O. S. Polezhaeva , and Yu. D. Tret’yakov.