| 摘要 |
Provided in the present invention is a polymerization method for a biodegradable high-barrier thermoplastic polymer. Monomers of the polymer comprise: a) a composite polyol of polycarbonate segments and polyether segments, b) one or several small molecule compounds having two or more hydroxyl groups and amine groups, c) one or several diisocyanate compounds, and d) one or several crosslinking agents. The preparation method is such that a), b), and c) are mixed and reacted, and then monomer d) is added into the mixture for grafting and crosslinking. By means of selectively synthesizing monomers and a reasonably designed reaction scheme and conditions, the present invention allows the polymer to be provided with excellent barrier properties with respect to moisture and oxygen, to acquire improved physical and mechanical properties, and to be provided with excellent biodegradability, thus broadening the field of application. |
