| abstract |
This invention provides a prepolymer which is obtained by reacting compound A and compound B, each compound comprising at least 2 intermolecular functional groups or a group of functional groups, and the functional groups or a group of functional groups in one compound can bind to polymerization with the functional groups or a group of functional groups in another compound, resulting in forming a high molecular weight polymer having hole structure. The weight average molecular weight of the prepolymer is about 200 to 100000. In a preferred embodiment, the functional groups or a group of functional groups in compound A is carboxyl groups or amino groups, and the functional groups or a group of functional groups in compound B are two amino groups, amino group and hydroxyl group, amino group and mercapto group, or two carboxyl groups. |