A novel linear poly(N-isopropylacrylamide) (PNIPA) with -cylodextrin (-CD) moiety (PNIPA--CD) was synthesized by the conjugation of -CD carrying amino groups (EDA--CD) onto PNIPA with epoxy groups (P(NIPA-co-GMA), M n ¼ 3.86 Â 10 4 ), and the related reaction conditions are investigated. PNIPA--CD was characterized by means of IR, NMR and UV spectroscopes, element analysis, and differential scanning calorimetry (DSC). The number-average molecular weight (M n ) and the -CD content of the obtained PNIPA--CD are 4.87 Â 10 4 and 18.8 wt %, respectively. PNIPA--CD can not only respond to temperature stimuli but also include guest molecules. Lower critical solution temperature (LCST) of aqueous PNIPA--CD solution is similar to that of PNIPA. The association constant (K a ) for PNIPA--CD with methyl orange (MO) is 2.4 Â 10 3 L mol À1 at pH 1.4, which is comparable to that of EDA--CD (K a ¼ 2.9 Â 10 3 L mol À1 ). V V C 2005 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 43: 3516-3524, 2005