A rheo-optical study of polydimethylsiloxane melt
โ Scribed by R. Subramanian; J.J.C. Picot
- Book ID
- 103791778
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 886 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0377-0257
No coin nor oath required. For personal study only.
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A series of polydimethylsiloxane (PDMS)/polycarbonate (PC) block copolymers with varying compositions were investigated by simultaneous mechanical and Fourier transform near-infrared (FTNIR) spectroscopic (rheo-optical) measurements to study segmental orientation during elongation-to-break and cycli
## Abstract Stress and birefringence relaxation have been measured for two polyurethane block polymers at several temperatures to 140ยฐC. Superposition of the stress curves is possible, but the existence of multiple relaxation mechanisms makes such a process of questionable validity. Simple superpos