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Unexpected polymorphism and unique particle morphologies from monodisperse droplet evaporation / Kelly M. Carver in Industrial & engineering chemistry research, Vol. 51 N° 48 (Décembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 48 (Décembre 2012) . - pp. 15720–15728 Titre : Unexpected polymorphism and unique particle morphologies from monodisperse droplet evaporation Type de document : texte imprimé Auteurs : Kelly M. Carver, Auteur ; Ryan C. Snyder, Auteur Année de publication : 2013 Article en page(s) : pp. 15720–15728 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Particle  monodisperse Résumé : The particle sizes, morphologies, and structures are presented for succinic acid particles formed from the evaporation of uniform droplets created with a vibrating orifice aerosol generator. Particle sizes are monodisperse, and solvent choice is found to be the dominant factor in determining the final morphology and structure. The external particle morphologies range from round to cap shaped, while the surface roughness ranges from fairly smooth to extremely rough and pitted. Internally, the particles have significant void space and noticeable crystals. X-ray diffraction confirms that the particles are crystalline. Thus, the morphologies of the particles take on a crystal filled structure that is unique in comparison to previous particles formed through droplet evaporation. The structure of the particles contains β succinic acid; however, the particles formed from water also contain α succinic acid. α Succinic acid has not previously been able to be formed from solution at near atmospheric conditions. The unique morphologies and ability to identify unexpected polymorphs provide for a potential tool to not only enhance particle engineering but also to identify metastable polymorphs. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie3015439 [article] Unexpected polymorphism and unique particle morphologies from monodisperse droplet evaporation [texte imprimé] / Kelly M. Carver, Auteur ; Ryan C. Snyder, Auteur . - 2013 . - pp. 15720–15728. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 48 (Décembre 2012) . - pp. 15720–15728 Mots-clés : Particle  monodisperse Résumé : The particle sizes, morphologies, and structures are presented for succinic acid particles formed from the evaporation of uniform droplets created with a vibrating orifice aerosol generator. Particle sizes are monodisperse, and solvent choice is found to be the dominant factor in determining the final morphology and structure. The external particle morphologies range from round to cap shaped, while the surface roughness ranges from fairly smooth to extremely rough and pitted. Internally, the particles have significant void space and noticeable crystals. X-ray diffraction confirms that the particles are crystalline. Thus, the morphologies of the particles take on a crystal filled structure that is unique in comparison to previous particles formed through droplet evaporation. The structure of the particles contains β succinic acid; however, the particles formed from water also contain α succinic acid. α Succinic acid has not previously been able to be formed from solution at near atmospheric conditions. The unique morphologies and ability to identify unexpected polymorphs provide for a potential tool to not only enhance particle engineering but also to identify metastable polymorphs. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie3015439