Abstract
We prepared amphiphilic alternating copoly(amide acid) (PAA) from rel[1R,5S,6R]-3-oxabicyclo[3.2.1]octane-2,4-dione-6-spiro-3'-(tetrahydrofuran- 2',5'-dione) (DAn), 2,4-diaminobenzenesulfonic acid, and o-nitrobenzyl 3,5-diaminobenzoate based on unique regioselectivity in the ring opening reaction of DAn. PAA directly dissolved in neutral water and serf-assembled to form polymer aggregates. The association behavior of PAA was investigated by photophysical study using fluorescent probe, transmission electron microscopy, and dynamic light scattering (DLS) measurements. Upon photoirradiation, a change in UV spectrum, which is attributed to photodecomposition of side chain, was observed. DLS measurements of the resulting solution indicated that the diameter of aggregates changed from 55 to 27 nm.
| Original language | English |
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| Number of pages | 1 |
| Publication status | Published - 2006 Oct 18 |
| Event | 55th SPSJ Annual Meeting - Nagoya, Japan Duration: 2006 May 24 → 2006 May 26 |
Other
| Other | 55th SPSJ Annual Meeting |
|---|---|
| Country/Territory | Japan |
| City | Nagoya |
| Period | 06/5/24 → 06/5/26 |
Keywords
- 2-nitrobenzyl ester
- Aggregates
- Amphiphilic alternating copoly(amide acid)
- Photoresponse
ASJC Scopus subject areas
- Engineering(all)