Supporting Information

Durable Antibacterial and Hydrophobic Cotton Fabrics Utilizing

Enamine Bonds

Liduo Rong1, Hongchen Liu1, Bijia Wang1,2,3, Zhiping Mao1,3, Hong Xu1,3, Linping

Zhang1,3, Yi Zhong1,3, Xueling Feng1,3, Xiaofeng Sui1,2,3, *

1 Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of

Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai,

201620, People’s Republic of China.

2 Key Lab of High Performance Fibers & Products, Ministry of Education, Donghua

University, Shanghai, 201620, People’s Republic of China.

3 Innovation Center for Textile Science and Technology of DHU, Donghua University,

Shanghai, 201620, People’s Republic of China.

*Corresponding authors:

Address: No. 2999 North Renmin Road, Shanghai 201620, China.

Tel.: +86 21 67792605. Fax: +86 21 67792707.

E-mail: suixf@dhu.edu.cn

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Fig. S1 DTG thermograms of cotton fabric and Cotton-acac

Table S1. Mechanical properties of cotton fabric and modified cotton fabrics Fabric Bursting force (N)Cotton 414.10Cotton-acac 414.01Cotton-acac-Gen 414.40Cotton-acac-Gen-ODA 414.20

Fig. S2 SEM images of Cotton-acac-Gen (a, b), and Cotton-acac-Gen-ODA (c, d).

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Table S2. Weight percent of elemental composition for the modified samples according to EDS.Element composition (wt%)

Samples C O NCotton-acac 52.1 47.9 -Cotton-acac-Gen 52.0 47.4 0.6Cotton-acac-Gen-ODA 55.6 43.7 0.7

Table S3. The average radius of ZOI for the modified samples

Sample R1 (E. coli (Gram−))/mm R2 (S. aureus (Gram+))/mmCotton-acac - -

Cotton-acac-Gen 6.2 ± 1.1 6.3 ± 0.6Cotton-acac-Gen-ODA 4.7 ± 0.7 4.3 ± 0.5

Fig. S3 Release ratio of Gen molecules from Cotton-acac-Gen during7 days of incubation in PBS with shaking at 37 °C.

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Fig. S4 Antibacterial activity of Cotton-acac-Gen against (a) E. coli and (b) S. aureus after 7 days of shaking and soaking.

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