For calculating using x-ray diffraction, SAXS is a good approach but
, few people reports the calculation using XRD at higher angles also. Is it correct to use Scherrer's formula or willamson Hall for calculating the crystallite size of polymers?
Hi
Generally crystalite is nothing but group of similar direction solidified atoms in a metaic material...
But in polymer they exhibits similar proportions everywhere.
But as yiu said using higher incident beam angle we can find the size of single polymer molecular chains...
Please find review paper and one chapter .. it might be useful for you...
SAX is used to determine very small sizes of polymer films. I believe that determining the crystallite size of the HRD polymer method is methodologically incorrect, since electron planes in polymers do not correspond to the Bragg method. It can be said that there is a region of crystallinity, but it would be methodically incorrect to apply the formula.
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