Improved Performance of Protected Catecholic Polysiloxanes for Bioinspired Wet Adhesion to Surface Oxides

详细信息    查看全文

• 作者：Jinhwa Heo ; Taegon Kang ; Se Gyu Jang ; Dong Soo Hwang ; Jason M. Spruell ; Kato L. Killops ; J. Herbert Waite ; Craig J. Hawker
• 刊名：The Journal of the American Chemical Society
• 出版年：2012
• 出版时间：December 12, 2012
• 年：2012
• 卷：134
• 期：49
• 页码：20139-20145
• 全文大小：462K
• 年卷期：v.134,no.49(December 12, 2012)
• ISSN：1520-5126

文摘

A facile synthetic strategy for introducing catecholic moieties into polymeric materials based on a readily available precursor (eugenol) and efficient chemistries [tris(pentafluorophenyl)borane-catalyzed silation and thiol鈥揺ne coupling] is reported. Silyl protection is shown to be critical for the oxidative stability of catecholic moieties during synthesis and processing, which allows functionalized polysiloxane derivatives to be fabricated into 3D microstructures as well as 2D patterned surfaces. Deprotection gives stable catechol surfaces whose adhesion to a variety of oxide surfaces can be precisely tuned by the level of catechol incorporation. The advantage of silyl protection for catechol-functionalized polysiloxanes is demonstrated and represents a promising and versatile new platform for underwater surface treatments.