Synthesis and thermoresponsive property of poly(N-isopropylacrylamide) with aryl chain-end and its cyclodextrin-inclusion complex

POLY 168

Atsushi Narumi, narumi@poly-bm.eng.hokudai.ac.jp1, Qian Duan2, Yutaka Miura, miura@poly-mc.eng.hokudai.ac.jp1, Toshifumi Satoh, satoh@poly-mc.eng.hokudai.ac.jp1, Harumi Kaga3, and Toyoji Kakuchi, kakuchi@poly-mc.eng.hokudai.ac.jp1. (1) Graduate School of Engineering, Hokkaido University, N13W8, Kita-ku, Sapporo 060-8628, Japan, (2) School of Chemical and Environmental Engineering, Changchun University of Science and Technology, Changchun, 130022, China, (3) National Institute of Advanced Industrial Science and Technology (AIST), 2-17-2-1 Tsukisamu-Higashi, Toyohira-Ku, Sapporo 060-8628, 062-8517, Japan
N-Isopropylacrylamide (NIPAM) was polymerized using the ATRP initiating system consisting of aryl chloropropionates (1a-d), CuCl, and Me6TREN to produce poly(N-isopropylacrylamide) with aryl chain-end (2a-d). The polymerization rates and also the LCST's of aqueous solutions for the products were significantly dependent on the initiators used. The LCST's of 2b-d were significantly low comparing to that of unmodified PNIPAM. The LCST of 2c (21.2 oC) was raised by the addition of b-CD (30.1 oC) due to the formation of a inclusion complex containing the end group with b-CD.
 

General Papers: Functional Materials
6:00 PM-8:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster

Division of Polymer Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007