申请人:Harris, Steven J.
公开号:EP0490631A2
公开(公告)日:1992-06-17
An ion-selective polymeric membrane for an electrochemical sensor for use in analytical chemistry, comprising
a) a supporting matrix e.g. of PVC, and
b) an ionophore selected from calixarene or oxacalixarene
derivatives of the formula IV
wherein
n + m = 3 - 8;
m = 0 - 8;
n = 0 - 8;
a, which may be the same or different on each aryl group, is 0 or 1;
R² is alkyl, aryl, alkaryl, alkoxy, alkoxyalkoxy, aryloxy, alkaryloxy, alicyclic, alkylthio, arylthio, alkarylthio, or a substituted derivative thereof;
R³ is -H, alkyl or alkenyl;
X is -OH or a group containing an acrylate or methacrylate functional group;
provided that when X is -OH, n is at least ½ (n + m);
and provided that when m = 0, n = 4, a = 0 and R³ is alkyl or allyl, R² is not alkoxy having 4 or more carbon atoms in the alkyl group;
and provided that when m = 0, n = 4, a = 0 and R³ is t-butyl, R² is not methoxy or ethoxy;
or of the formula V
wherein R⁴ is alkyl;
or polymers of those compounds of the formula IV in which X is a group containing an acrylate or methacrylate group.
New compounds in which R² is -SCH₂CH₃ are described.
Selectivity coefficients and slope measurements are given for the ionophores in PVC electrodes which are selective for sodium, potassium and caesium.
一种用于分析化学电化学传感器的离子选择性聚合物膜,包括
a) PVC 等支撑基质,以及
b) 选自钙钛矿或氧杂钙钛矿的离子载体
式 IV 的衍生物
其中
n + m = 3 - 8;
m = 0 - 8;
n = 0 - 8;
每个芳基上的 a 可以相同或不同,为 0 或 1;
R² 是烷基、芳基、烷芳基、烷氧基、烷氧基烷氧基、芳氧基、烷芳氧基、脂环族、烷硫基、芳硫基、烷芳硫基或其取代衍生物;
R³ 是-H、烷基或烯基;
X 是-OH 或含有丙烯酸酯或甲基丙烯酸酯官能团的基团;
条件是当 X 为-OH 时,n 至少为 ½ (n + m);
当 m = 0、n = 4、a = 0 且 R³ 为烷基或烯丙基时,R² 不是烷基中含有 4 个或更多碳原子的烷氧基;
当 m = 0、n = 4、a = 0 且 R³ 为叔丁基时,R² 不是甲氧基或乙氧基;
或式 V
其中 R⁴ 是烷基;
或式 IV 中 X 为含有丙烯酸酯或甲基丙烯酸酯基团的化合物的聚合物。
描述了 R² 为 -SCH₂CH₃ 的新化合物。
给出了 PVC 电极中的离子体对钠、钾和铯的选择性系数和斜率测量值。