申请人:SABIC GLOBAL TECHNOLOGIES B.V.
公开号:US10150826B2
公开(公告)日:2018-12-11
A process for preparing an ethylene copolymer in the presence of free-radical polymerization initiator at pressures from 150 MPa to 350 MPa and temperatures from 100° C. to 350° C., by copolymerizing ethylene and a comonomer having a C≡C bond and optionally further comonomers, wherein the comonomer having the C≡C bond is represented by formula
wherein
R1 is hydrogen or methyl;
X1 is —CO—O— or —CO—NH—;
R2 is —CH2—O—, —O—CO—, —Si(CH3)2—, —Si(CH3)2—O— or —CR5R6— wherein R5 and R6 are independently selected from hydrogen, methyl, ethyl and hydroxyl;
n is an integer from 1 to 32 and R2 is same or different from each other when n is 2 to 32; and
R3 is —C≡C— and R4 is hydrogen, C1-C10 linear or branched alkyl, C1-C10 linear or branched hydroxyalkyl or phenyl, or the unit R3-R4 stands for
wherein X2 is F, Cl, Br or I.
一种在自由基聚合引发剂存在下,在压力为 150 兆帕至 350 兆帕,温度为 100 摄氏度至 350 摄氏度的条件下制备乙烯共聚物的工艺,其方法是将乙烯和具有 C≡C 键的共聚单体以及可选的进一步共聚单体共聚,其中具有 C≡C 键的共聚单体由式表示
式中
R1 是氢或甲基
X1 是-CO-O-或-CO-NH-;
R2是-CH2-O-、-O-CO-、-Si(CH3)2-、-Si(CH3)2-O-或-CR5R6-,其中 R5 和 R6 独立选自氢、甲基、乙基和羟基;
当 n 为 2 至 32 时,n 是 1 至 32 的整数,R2 彼此相同或不同;以及
R3 是-C≡C-,R4 是氢、C1-C10 直链或支链烷基、C1-C10 直链或支链羟烷基或苯基,或单元 R3-R4 代表
其中 X2 为 F、Cl、Br 或 I。