N-(2,2,6,6-tetraalkyl-4-piperidinyl)imide containing polymer is prepared by blending together a mixture of a polymer containing anhydride functions and a 4-amino-2,2,6,6-tetraalkylpiperidine or its 1-alkyl or 1-acyl derivatives and heating said materials in the blend, either prior to or during the blending step to the molten stage of the polymer; thereafter, heating said blend above 180°C for a sufficient time to form the product. All volatile by-products are removed either simultaneously or concurrently with the above 180°C heating step.
将含有酸酐功能的
聚合物和 4-
氨基-
2,2,6,6-四烷基
哌啶或其 1-烷基或 1-酰基衍
生物的混合物混合在一起,并在混合步骤之前或期间将混合物中的上述材料加热至
聚合物的熔融阶段;然后,将上述混合物加热至 180°C 以上,持续足够的时间以形成产品,从而制备含有 N-(
2,2,6,6-四烷基-4-
哌啶基)
亚胺的
聚合物。在上述 180°C 的加热步骤中,所有挥发性副产品都会同时或同时被除去。