Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (12): 3746.doi: 10.7503/cjcu20210590

• Polymer Chemistry • Previous Articles     Next Articles

Preparation and Properties Characterization of Polysiloxane Skin Tissue Adhesive

CHEN Binggang1,2, LIU Sanrong1, YU Xifei1,2(), JIANG Zijiang3()   

  1. 1.Laboratory of Polymer Composites Engineering,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
    2.University of Science and Technology of China,Hefei 230026,China
    3.National Analytical Research Center of Electrochemistry and Spectroscopy,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
  • Received:2021-08-17 Online:2021-12-10 Published:2021-10-08
  • Contact: YU Xifei,JIANG Zijiang E-mail:xfyu@ciac.ac.cn;zjjiang@ciac.ac.cn
  • Supported by:
    the National Natural Science Foundation of China(21674109);the Joint Fund of FHJLU and CIAC for Technology Transfer and Commercialization, China(CGZHYD202012?015)

Abstract:

Skin is inevitably injured as the outermost organ of human body in daily life. Suture is the main methods to deal with the open skin wounds. However, even if suture can effectively close the open wounds, it may cause some defects such as secondary damage and scars. It is ideal to develop the tissue adhesive with good performance to replace the suture. Based on the analysis of properties requirements of skin tissue adhesive, a polysiloxane skin tissue adhesive was designed and synthesized which is consisted of prepolymer poly(dimethyl siloxane)n-co-poly(propoxybenzaldehyde methyl siloxane)m(PDMSn-PBAMSm), crosslinker poly(hydromethyl siloxame)PHMS and Karstedt’s catalyst. Among them, the side groups of prepolymer with functional modification can covalently interact with skin, prepolymer and PHMS can occur rapid in situ curing reaction to achieve adhesion on skin. The results indicate that polysiloxane tissue adhesive has compatible mechanical properties with skin through adjusting the degree of polymerization(DP) of prepolymer, modified proportion of functional group and content of PHMS. The adhesion tests indicate that the polysiloxane has good adhesive property for hogskin and the maximum shear adhesive strength is 77.6 kPa. In addition, prepolymer and PHMS complete in situ curing process in about 100 s at room temperature. Polysiloxane adhesvie can meet the property requirements as a good skin tissue adhesive and has a good application prospect in regenerative medicine.

Key words: Polysiloxane, Skin tissue adhesive, Covalently interaction, In situ curing

CLC Number: 

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