کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5183674 | 1381025 | 2011 | 5 صفحه PDF | دانلود رایگان |
The chiral polymer P-1 incorporating (S)-2,2â²-binaphthol (BINOL) and (S)-2,2â²-binaphthyldiamine (BINAM) moieties in the main chain of the polymer backbone was synthesized by the polymerization of (S)-6,6â²-dibutyl-3,3â²-diformyl-2,2â²-binaphthol (S-M-1) with (S)-2,2â²-binaphthyldiamine (S-M-2) via nucleophilic addition-elimination reaction, and the chiral polymer P-2 could be obtained by the reduction reaction of P-1 with NaBH4. The fluorescence intensity of the chiral polymer P-1 exhibits gradual enhancement upon addition of (d)- or (l)-phenylalaninol and keeps nearly a linear correlation with the concentration molar ratios of (d)- or (l)-phenylalaninol. The value of enantiomeric fluorescence difference ratio (ef) is 6.85 for the chiral polymer on (d)-phenylalaninol. On the contrary, the chiral polymer P-2 shows no obvious fluorescence response toward either (d)- or (l)-phenylalaninol.
Journal: Polymer - Volume 52, Issue 2, 21 January 2011, Pages 363-367