Supporting Information

Heteroatom-Rich Porous Organic Polymers Constructed by Benzoxazine Linkage with High Carbon Dioxide Adsorption Affinity

Shujun Xu,a, b, c Jiang He a, b, c, Shangbin Jin *a, b, c and Bien Tan *a, b, c

aSchool of Chemistry and Chemical Engineering, Huazhong University of Science

and Technology, Wuhan, 430074, China. bHubei Key Laboratory of Materials Chemistry & Service Failure.cKey Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry

of Education.

* Corresponding authors: jinsb@hust.edu.cn; bien.tan@hust.edu.cn.

Contents

Fig. S1. Zoomed FT-IR spectrum of BoxPOPs 2

Fig. S2. Solid-state 13C CP/MAS NMR spectrum 3

Fig. S3. TGA curves 4

Fig. S4. HR-TEM images 5

Table S1. Solid-state NMR assignments of the polymers 6

Table S2. Elemental analysis results 7

Reference 8

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Fig. S1. Zoomed FT-IR spectrum of BoxPOPs

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Fig. S2 Solid-state 13C CP/MAS NMR spectrum of BoxPOP-3.

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Fig. S3. TG curves of BoxPOP-1 (black line), BoxPOP-2 (red line) and BoxPOP-3 (blue line).

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Fig. S4. HR-TEM images of (a) BoxPOP-1, (b) BoxPOP-2 and (c) BoxPOP-3.

Table S1 Summary of the CP-MAS solid-state NMR peaks in the polymers

Entry BoxPOP-1 BoxPOP-2 BoxPOP-3 Model Compound:

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(Calix[3]benzoxazines)[1]

1 150.2 (f) 149.0 (i) 158.2 (i) 149.8

2 143.0 (a,d) 143.8 (b,f) 130.2 (a ,f,

h)

148.2

3 – 129.4 (h) 121 (c,d) 129.4

4 – – – 120.7

5 117.7 (br) (b,c) – 111 (b, e) 117.6

6 101.8 (g) 110.25(br)

(a,c,d,e)

100.8

7 81.5 (h) 83.2 (g) 82.0 (g) 79.0

8 43.8 (e) 48.9 (j) 37.2 (j) 44.8

Table S2 Elemental analysis results of the BoxPOPs

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C (%) H (%) N (%)

Box-POP-1 59.64 5.13 8.72

Box-POP-2 57.90 5.29 9.37

Box-POP-3 54.56 4.82 4.62

Reference[1] R. Singh, M. Schober, X. D. Hou, A. Seay and Q. L. Chu, Tetrahedron Letters. 53

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(2012) 173-175.

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