1HNMR spectra of BSPB diamines and IR spectra of resulting ...

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1HNMR spectra of BSPB diamines and IR spectra of resulting polyimide membranes. Fig. S2 IR spectra of NTDA-BSPB membranes. ppm. Fig. S1 1HNMR ...
HNMR spectra of BSPB diamines and IR spectra of resulting polyimide membranes

4

5

6

OCH2CH2CH2SO3H 2

3

1

H2 N

NH2 2

3

5

4

HO3SH2CH2CH2CO

3

6

1

4 overlapped 6

NH2

2

6

From Et3N

1

5

4

4

5

6

1

3

2

3

1

5

3

2

OCH2CH2CH2SO3H H2N

NH2 2

2

1

4 From Et3N

HO3SH2CH2CH2CO 6

5

4

NH2

3

overlapped

5

6

7

6

5

4

3

2

ppm Fig. S1 1HNMR spectra of BSPB diamine monomers.

3500

3000

2500

2000

1500

1035

NTDA-3,3'-BSPB

1712 1672

NTDA-2,2'-BSPB

1350 1201

2965

T/%

1

1000

-1

Wavenumber / cm

Fig. S2 IR spectra of NTDA-BSPB membranes.

500