SynopsisThe particle size distribution of suspension copolymers of styrene, chloromethylstyrene, and divinylbenzene prepared with gelatin and poly(diallyldimethylammonium chloride) as suspension stabilizers can be varied widely by variation of the relative amounts of monomer and aqueous phases, the stirring speed, and the amount of added anionic surfactant sodium dodecylbenzenesulfonate.

Single crystal of glycine lithium sulphate, a nonlinear optical material, was grown from aqua solution by temperature reduction method. The solubility and metastable zonewidth of glycine lithium sulphate were estimated using aqueous solution. The cell parameters of the grown crystal were estimated by single crystal X-ray diffraction analysis. The presence of functional groups was identified from FTIR spectrum. Thermal analysis was performed to study the thermal stability of the grown crystal. The transmission and absorption spectra of this crystal show that the lower cut off wavelength lies at 330 nm. Powder Second Harmonic Generation efficiency of the grown crystal measured by Kurtz technique is 0.75 times that of potassium dihydrogen orthophosphate. Vickers microhardness study was carried out on the well developed (011) face of the grown crystal.

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