高等学校化学学报 ›› 2021, Vol. 42 ›› Issue (12): 3746.doi: 10.7503/cjcu20210590

• 高分子化学 • 上一篇    下一篇

聚硅氧烷皮肤组织黏接材料的设计合成与性能表征

陈炳刚1,2, 刘三荣1, 于喜飞1,2(), 蒋子江3()   

  1. 1.中国科学院长春应用化学研究所高分子复合材料工程实验室, 长春 130022
    2.中国科学技术大学, 合肥 230026
    3.中国科学院长春应用化学研究所国家电化学和光谱研究分析中心, 长春 130022
  • 收稿日期:2021-08-17 出版日期:2021-12-10 发布日期:2021-10-08
  • 通讯作者: 于喜飞,蒋子江 E-mail:xfyu@ciac.ac.cn;zjjiang@ciac.ac.cn
  • 基金资助:
    国家自然科学基金(21674109);吉林大学第一医院-长春应用化学研究所成果转化引导基金(CGZHYD202012-015)

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)

摘要:

设计开发了以聚硅氧烷材料为基础的皮肤组织黏接剂, 其主要由硅氧烷预聚体、 含氢硅油交联剂和卡斯特催化剂等多组分构成. 在卡斯特催化剂作用下, 预聚体和交联剂室温下在皮肤表面原位快速固化, 其中聚硅氧烷预聚体的苯甲醛侧基与皮肤组织中广泛存在的胺基通过醛胺缩合反应实现共价黏接. 本文系统研究了聚硅氧烷预聚体的聚合度、 侧基含量及交联剂的用量等参数对该黏接剂性能的影响, 得到了最大剪切黏接强度为77.6 KPa、 室温条件下100 s内即可形成稳定黏接的组织黏接材料. 该材料还具有良好的力学相容性、 生物安全性和结构稳定性, 可满足皮肤黏接剂的基本要求, 具有较好的应用前景.

关键词: 聚硅氧烷, 皮肤组织黏接, 共价相互作用, 原位固化

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

中图分类号: 

TrendMD: