Abstract
We herein report the synthesis of amphiphilic alternating copolyimides (AACs) and their aggregation behavior in an aqueous system. AACs showed good solubility toward 20 mM Tris HC1 buffer (pH=7.0). The aggregate formation of AACs was confirmed through UV spectral study using pinacyanol chloride as a spectrophotomeric probe. In dynamic light scattering, AACs showed two distinct populations of the aggregated species. For smaller particles, the diameter was estimated to be 100-300 nm. In contrast, those of larger particles were 2-3 μm. Such an aggregate formation was not observed with the random copolyimide counterparts. It is worth mentioning that diameters of aggregates were much larger than those of known amphiphilic polymers.
| Original language | English |
|---|---|
| Number of pages | 1 |
| Publication status | Published - 2005 Dec 1 |
| Event | 54th SPSJ Annual Meeting 2005 - Yokohama, Japan Duration: 2005 May 25 → 2005 May 27 |
Other
| Other | 54th SPSJ Annual Meeting 2005 |
|---|---|
| Country | Japan |
| City | Yokohama |
| Period | 05/5/25 → 05/5/27 |
Keywords
- Alicyclic polyimide
- Alternating copolymer
- Amphiphilic polyimide
- Self-assembly
- Sulfonic acid group
ASJC Scopus subject areas
- Engineering(all)
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Othsuka, Y., Hamada, T., Sakamoto, S., & Kudo, K. (2005). Synthesis and association behavior in an aqueous media of amphiphilic alternating copolyimides having sulfonic acid group. Paper presented at 54th SPSJ Annual Meeting 2005, Yokohama, Japan.