Abstract
This study investigates the chemical reactivity of two Joncryl chain extender types (i.e., ADR 4468 and Joncryl ADR 4400) with three different polylactide (PLA) grades having different molecular weights through rheological analysis. The Joncryl 4468 and 4400 possess functionality groups of around 24 and 14, respectively. Low, medium and high molecular weight PLAs (i.e., L-PLA, M-PLA, and H-PLA) with a given D-content of 1.4 mol% were melt mixed with the noted Joncryl chain extenders at two different contents of 0.5 and 1.0 wt%. Processing was conducted in an internal melt mixer at similar processing conditions. Small amplitude oscillatory shear (SAOS) rheological experiments were conducted to monitor the effect of PLA's molecular weight and chain extender type on the reactivity between PLA molecules and chain extender.
| Original language | English |
|---|---|
| Article number | 160001 |
| Journal | AIP Conference Proceedings |
| Volume | 2884 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 19 Oct 2023 |
| Event | 37th International Conference of the Polymer Processing Society, PPS 2022 - Hybrid, Fukuoka City, Japan Duration: 11 Apr 2022 → 15 Apr 2022 |
Bibliographical note
Publisher Copyright:© 2023 AIP Publishing LLC.
Keywords
- Joncryl chain extender
- Polylactide
- rheological properties