Determination of crystallinitywas done by a PW3710 Philips
Analyical X-ray B.V. static Wide Angle X-ray Scattering
(WAXS) diffractometer, using a Ni filtered Cu K radiation,
generated by an anode device operating at 40 kV and 30mA
in conjunction with a proportional detector. The patterns were
recorded with a fixed time of 0.4 s per step of 0.02◦ in the
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