Nucleation versus melting point depression of the polycaprolactone phase in polypropylene/polycaprolactone blends
| LEADER | caa a22 4500 | ||
|---|---|---|---|
| 001 | 378902970 | ||
| 003 | CHVBK | ||
| 005 | 20180305123522.0 | ||
| 007 | cr unu---uuuuu | ||
| 008 | 161128e20041201xx s 000 0 eng | ||
| 024 | 7 | 0 | |a 10.1515/epoly.2004.4.1.163 |2 doi |
| 035 | |a (NATIONALLICENCE)gruyter-10.1515/epoly.2004.4.1.163 | ||
| 245 | 0 | 0 | |a Nucleation versus melting point depression of the polycaprolactone phase in polypropylene/polycaprolactone blends |h [Elektronische Daten] |c [Vittoria Balsamo, Laura Gouveia] |
| 520 | 3 | |a Polypropylene/poly(ε-caprolactone) (PP/PCL) blends were prepared by melt mixing. The thermal behaviour of the blends was investigated using differential scanning calorimetry (DSC) and dynamical rheology in the solid state (RSA). Both non-isothermal and isothermal crystallizations were performed. The Avrami equation was applied to the latter case. DSC and RSA results demonstrated in agreement with morphological observations that PP/PCL blends are immiscible in the whole composition range. PP acts as a nucleating agent for PCL, and when PP forms the disperse phase, it crystallizes in a fractionated fashion. When PCL is the disperse phase, it exhibits an unexpected melting point depression after cooling at 10 °C/min. Such depression was not observed after isothermal crystallizations, indicating that under non-isothermal crystallization kinetic problems show up. Thus, global crystallization is governed by a competition between nucleation and diffusion, which depends on crystallization conditions and composition. | |
| 540 | |a © 2013 by Walter de Gruyter GmbH & Co. | ||
| 700 | 1 | |a Balsamo |D Vittoria |u Grupo de Polímeros USB, Departamento de Ciencia de los Materiales, Universidad Simón Bolívar, Aptdo. 89000, Caracas 1080A, Venezuela; Fax 0058-212-9063388 |4 aut | |
| 700 | 1 | |a Gouveia |D Laura |u Grupo de Polímeros USB, Departamento de Ciencia de los Materiales, Universidad Simón Bolívar, Aptdo. 89000, Caracas 1080A, Venezuela; Fax 0058-212-9063388 |4 aut | |
| 773 | 0 | |t e-Polymers |d De Gruyter |g 4/1(2004-12-01), 163-181 |x 2197-4586 |q 4:1<163 |1 2004 |2 4 |o epoly | |
| 856 | 4 | 0 | |u https://doi.org/10.1515/epoly.2004.4.1.163 |q text/html |z Onlinezugriff via DOI |
| 908 | |D 1 |a research article |2 jats | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1515/epoly.2004.4.1.163 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Balsamo |D Vittoria |u Grupo de Polímeros USB, Departamento de Ciencia de los Materiales, Universidad Simón Bolívar, Aptdo. 89000, Caracas 1080A, Venezuela; Fax 0058-212-9063388 |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Gouveia |D Laura |u Grupo de Polímeros USB, Departamento de Ciencia de los Materiales, Universidad Simón Bolívar, Aptdo. 89000, Caracas 1080A, Venezuela; Fax 0058-212-9063388 |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t e-Polymers |d De Gruyter |g 4/1(2004-12-01), 163-181 |x 2197-4586 |q 4:1<163 |1 2004 |2 4 |o epoly | ||
| 900 | 7 | |b CC0 |u http://creativecommons.org/publicdomain/zero/1.0 |2 nationallicence | |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-gruyter | ||