The present invention is directed to a crosslinked or non-crosslinked polymer particle, wherein the crosslinked polymer particle comprises a copolymer of poly(alklyene glycol-graft-acrylate) that is crosslinked by at least one hydrolysable monomer or crosslinking agent. The present invention is also directed to a polymer particle comprising a crosslinked polymer particle that is a product of starting materials comprising (a) a hydrophilic monomer, (b) a hydrophobic monomer, and (c) a hydrolysable crosslinking agent (the crosslinking agent may be absent in the case of non-crosslinked particles). The present invention is still further directed to a polymer particle comprising a crosslinked copolymer, where the crosslinked copolymer includes structures represented by Formulas (I), (II), and (III), as defined in the specification. Other embodiments of the present invention also include methods of manufacturing polymer particles.
本发明涉及交联或非交联聚合物颗粒,其中交联聚合物颗粒包括至少一种可
水解单体或
交联剂交联的聚(烷基
乙二醇接枝
丙烯酸酯)共聚物。本发明还涉及一种聚合物颗粒,其包括起始材料的产物,该起始材料包括(a)亲
水性单体,(b)疏
水性单体和(c)可
水解
交联剂(在非交联颗粒的情况下,
交联剂可以不存在)的交联聚合物颗粒。本发明还涉及一种聚合物颗粒,其包括交联共聚物,其中交联共聚物包括由规范中定义的公式(I)、(II)和(III)表示的结构。本发明的其他实施方式还包括制造聚合物颗粒的方法。