申请人:PETROLITE CORPORATION
公开号:EP0329891A2
公开(公告)日:1989-08-30
End-functionalized low molecular weight polymers and copolymers of ethylene and alkoxylated polymers and copolymers of ethylene are prepared which have an unusually low polydispersity.
The invention provides a composition characterized by the formula
RCH₂R₁X
wherein R represents a polyethylene radical having an average chain length of from about 20 to about 500 carbon atoms and a polydispersity of 1.04 to 1.20; R₁ represents a saturated hydrocarbon radical having 2 to about 20 carbon atoms; and X represents a functional group other than a hydroxyl, ester, phosphate or phosphite group, a composition characterized by the formula
RCH₂Y(R₁O)n-1R₁X
wherein R represents a polyethylene radical having an average chain length of from about 20 to about 500 carbon atoms and a polydispersity of 1.04 to 1.20; R₁ represents a saturated hydrocarbon radical having 2 to about 20 carbon atoms; X represents a functional group other than a hydroxyl group; Y represents oxygen or sulfur; and n represents 2 to about 100 and a composition characterized by the formula
RCH₂[Y(R₁O)n-1]mR₁X
wherein R represents an ethylene/α-olefin copolymer radical having an average chain length of from about 20 to about 500 carbon atoms and a polydispersity of 1.04 to 1.20; R₁ represents a saturated hydrocarbon radical having 2 to about 20 carbon atoms; X represents a functional group other than a hydroxyl group; Y represents oxygen or sulfur; n represents 2 to about 100; and m represents zero or 1.
本发明制备了端官能化的低分子量聚合物和乙烯共聚物以及烷氧基化聚合物和乙烯共聚物,它们具有异常低的多分散性。
本发明提供了一种组合物,其特征式为
RCH₂R₁X
其中 R 代表聚乙烯基,其平均链长为约 20 至约 500 个碳原子,多分散度为 1.04 至 1.20;R₁ 代表具有 2 至约 20 个碳原子的饱和烃基;X 代表羟基、酯基、磷酸基或亚磷酸酯基以外的官能团。
RCH₂Y(R₁O)n-1R₁X
其中 R 代表平均链长为约 20 至约 500 个碳原子且多分散度为 1.04 至 1.20 的聚乙烯基;R₁ 代表具有 2 至约 20 个碳原子的饱和烃基;X 代表羟基以外的官能团;Y 代表氧或硫;以及 n 代表 2 至约 100,其特征为式 RCH₂Y(R₁O)n-1R₁X 的组合物。
RCH₂[Y(R₁O)n-1]mR₁X
其中 R 代表乙烯/α-烯烃共聚基,其平均链长为约 20 至约 500 个碳原子,多分散度为 1.04 至 1.20;R₁ 代表具有 2 至约 20 个碳原子的饱和烃基;X 代表羟基以外的官能团;Y 代表氧或硫;n 代表 2 至约 100;以及 m 代表 0 或 1。