| Revista: | Polimeros (Sao Carlos) |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000314003 |
| ISSN: | 1678-5169 |
| Autores: | D'Alkaine, Carlos V1 Otaguro, Harumi |
| Instituciones: | 1Universidade Federal de Sao Carlos, Departamento de Quimica, Sao Carlos, Sao Paulo. Brasil |
| Año: | 2001 |
| Volumen: | 11 |
| Número: | 4 |
| Paginación: | 234-239 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | Simulations have shown that temperature changes during the growth of lamelae/ribbons of a polymer crystal induce alterations in the thickness of the lamelar crystal. Therefore, the lamelae/ribbons would melt at different temperatures. This is demonstrated experimentally here for spherulites of Isotactic Polystyrene (iPS). The results were obtained following the melting process of selected spherulite structures through temperature scanning. The samples, in which chosen spherulites were observed, were crystallized from the melting state at successive crystallization temperatures. Observations of these spherulite melting processes were made with an optical polarized microscope, using a hot stage to apply the temperature scan |
| Disciplinas: | Química |
| Palabras clave: | Química de polímeros, Poliestireno isotáctico, Temperatura, Cristalización, Morfología |
| Keyword: | Chemistry, Polymer chemistry, Isotactic polystyrene, Morphology, Crystallization, Temperature |
| Texto completo: | Texto completo (Ver HTML) |
