| Surface Hydrophilic Modification of Silicone Rubber and Its Properties |
| Received:October 14, 2021 Revised:October 14, 2021 |
| DOI：10.12136/j.issn.1000-890X.2023.02.0105 |
| Key Words: silicone rubber；PVP；surface modification；SI-ATRP；hydrophilicity |
| Author Name | Affiliation | E-mail | | ZHANG Yuxuan | Changzhou University | 739884923@qq.com | | HAO Dongdong | Changzhou University Huaide College | | | DING Yonghong* | Changzhou University | dyh@cczu.edu.cn |
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| Abstract: |
| In this study，active groups were introduced onto the surface of silicone rubber by plasma
treatment. Then the initiator 2-bromoisobutyryl bromide（BIBB） was grafted on the surface of the silicone
rubber containing active groups through nucleophilic substitution，and polyvinylpyrrolidone（PVP） was
grafted onto the silicone rubber by surface initiated atomic transfer radical polymerization（SI-ATRP）. The
test results from Fourier infrared spectroscopy，X-ray photoelectron spectroscopy and field emission electron
scanning microscope showed that BIBB and PVP were successfully grafted on the surface of silicone rubber.
Through the water contact angle test，it was found that the water contact angle of the silicone rubber surface
decreased from 110. 7° to 36° after PVP graft，showing improved surface hydrophilicity. |
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