(1.Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China) (2. Collaborative Innovation Center for the Manufacture of Fluorine and Silicone Fine Chemicals and Materials, Hangzhou Normal University, Hangzhou 311121, China) (3. Jiaxing United Chemistry Co., Ltd., Jiaxing 314000, China)
In the field of silicon chemistry, polysiloxanes have semi-inorganic properties, which have attracted wide attention in production and life. In order to meet the special needs of polysiloxane in application of basic materials, single terminated polysiloxanes are developed on the basis of common double terminated polysiloxanes and used in more and more fields. Compared with double terminated polysiloxane, in single-active functional group terminated polysiloxane molecular, one of its terminal groups is a chemically inert group, while the other is an active functional group that can participate in numerous chemical reactions, and the active reaction sites are used to graft or copolymerize with other monomers or organic polymers, inorganic substances or silicon compounds containing active groups to form block or graft-modified siloxane copolymers, which can not only improve the mechanical properties of polysiloxane, but also combine the excellent properties of polysiloxane with those of other polymers. It makes single terminated polysiloxane gain better advantages in coatings, compounding with other substances and so on. According to the difference of functional groups, single-active functional group terminated polysiloxanes are classified in this manuscript, and the research progress and application fields of single-active functional group terminated polysiloxanes are briefly reviewed. The prospects of single-active functional group terminated polysiloxanes are also provided.