Ferroelastic lattice instability during the thermally enhanced reaction of MSE

A p-dimethylaminobenzenesulfonate (MSE) polycrystalline powder is converted to the zwitterionic product p-trimethylammoniumbenzenesulfonate (ZWT) by a chemical thermally induced reaction at T= 55,5°C. Experimental results obtained by differential scanning calorimetry and 13C solid-state NMR indicate that reaction-induced stress gives rise to a ferroelastic lattice instability during the thermally enhanced solid state reaction of methyl p-dimethylaminobenzenesulfonate (MSE).

Keywords:

• Ferroelastic
• structural phase transition
• MSE