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Complex formation of indomethacin (IM) and β cyclodextrin by mechanical means and the dependence of the IM-β CD complex stability on humidity were closely examined in solid phase roll mixtures by measuring IM concentration by both HPLC and elemental analysis. Roll mixed products exhibited an amorphous form in the powdered state, but instantly changed to a crystalline form when these were stored under...
Catalytic degradations of polyethylene into fuel oils and of polystyrene into styrene monomer have been studied using solid acids and bases as catalysts. Solid acids such as silica-aluminas and ZSM-5 zeolite were found to be effective to degrade waste polyethylene into fuel oils, and solid bases such as BaO and K 2 O were concluded to be effective to convert waste polystyrene into styrene...
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