Abstract
The crystallization behavior of isotactic polypropylene (iPP) induced with various concentrations of the β-form nucleating agent aryl amide derivative (TMB-5) at different temperatures was investigated with synchrotron small-angle X-ray scattering and wide-angle X-ray scattering (WAXS) and polarized optical microscopy. The WAXS results indicate that TMB-5 is a temperature-dependent selective nucleating agent for iPP crystallization. This means that only β crystals or α crystals form at low or high crystallization temperatures, respectively; both β and α crystals can be found at a suitable crystallization temperature. A mechanism was proposed to understand this phenomenon and the crystallization behavior of iPP with the nucleating agent.
| Original language | English |
|---|---|
| Pages (from-to) | 628-635 |
| Number of pages | 8 |
| Journal | Journal of Applied Polymer Science |
| Volume | 128 |
| Issue number | 1 |
| DOIs | |
| State | Published - Apr 5 2013 |
| Externally published | Yes |
Keywords
- WAXS
- crystal structures
- crystallization
- poly(propylene) (PP)