The specific interfacial area (S/V) and interfacial thickness in each microstructure of styrene-isoprene diblock copolymer were estimated by analyzing the deviations from Porod's law. The thermally induced phase transitions proceeded from lamellae (L) to hexagonally ordered cylinder (HEX), via hexagonally perforated layer (HPL) and gyroid (G). The S/V ratio increased stepwise at the order-order transition (OOT) from L to HEX, via HPL and G. The S/V data can be utilized for OOT determination.
Bibliographical noteFunding Information:
This paper was supported by the Korea Research Foundation Grant (KRF-2007-314-D00069) and Samsung Research Fund, Sungkyunkwan University, 2008. The assistance of the Pohang Accelerator Laboratory in performing in SAXS measurements is gratefully acknowledged.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Polymers and Plastics
- Organic Chemistry
- Materials Chemistry