Abstract
The crystallization, melting and relaxation characteristics of semicrystalline poly(trimethylene terephthalate) [PTT] have been studied as a function of thermal processing history. Samples with bulk crystallinity ranging from 15 to 50% were prepared by various routes and their dynamic relaxation characteristics investigated by broadband dielectric relaxation spectroscopy and dynamic mechanical thermal analysis. Both cold-crystallized and melt-crystallized specimens display a sizeable rigid amorphous phase fraction, and the overall phase behavior of the specimens was quantified using calorimetric and dielectric measurements. In addition, blends of PTT with amorphous polyetherimide [PEI; Tg ∼ 215°C] have been explored as a means by which to control crystallization and enhance thermal resistance of the base resin. Melt-formulated blends were prepared across the entire range of compositions, and the influence of the non-crystallizable (PEI) diluent has been assessed in terms of crystallization kinetics, bulk crystallinity, and potential amorphous phase segregation.
| Original language | English |
|---|---|
| Pages | 4451 |
| Number of pages | 1 |
| State | Published - 2005 |
| Event | 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States Duration: Oct 30 2005 → Nov 4 2005 |
Conference
| Conference | 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase |
|---|---|
| Country/Territory | United States |
| City | Cincinnati, OH |
| Period | 10/30/05 → 11/4/05 |
ASJC Scopus subject areas
- General Engineering