Questions

1.Briefly describe the advantages and disadvantages of free radical polymerization，anionic polymerization，cationic polymerization and coordination（directed）catalytic polymerization.

2.Briefly describe several common methods of the synthesis of biomedical polymers.

3.Briefly describe several common methods of the surface modification of biomedical polymers.(https://www.daowen.com)

4.What are the special performance requirements of biomedical polymers？

5.What kinds of biomedical polymers are commonly-used in the field of skin cosmetology？