Abstract
We report a simultaneous study in self-seeding and isothermal crystallization of polyethylene (PE) in the solution using time resolved small angle neutron scattering (SANS). We observe that the SANS spectra obtained from self-seeding technique are significantly different from isothermal crystallization technique of PE crystallization in solution. The first correlation peak from structure factor for self-seeding crystallization is not clear compare to isothermal crystallization spectra, indicating that crystals are dominantly in single or few lamellae forms. Structural information, such as the lamellar long period, lamellar crystal thickness, amorphous layers between lamellae, invariant and crystallinity has been quantitatively determined based on model fitting. Avrami analysis depicts 2D lamellar structure formation.
| Original language | English |
|---|---|
| Pages (from-to) | 192-197 |
| Number of pages | 6 |
| Journal | Polymer |
| Volume | 61 |
| DOIs | |
| State | Published - 20 Mar 2015 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2015 Elsevier Ltd. All rights reserved.
Funding
The author acknowledges the support of the National Institute of Standards and Technology in providing the neutron research facilities used in this work.
| Funders | Funder number |
|---|---|
| National Institute of Standards and Technology |
Keywords
- Polymer crystallization
- Self seeding
- Small angle neutron scattering