COORDINATION SORPTION OF AMINES ON SULPHONIC RESIN IN Cu2+ FORM FROM NONAQUEOUS SYSTEM
返回论文页
Research Article|更新时间:2021-03-19
|
COORDINATION SORPTION OF AMINES ON SULPHONIC RESIN IN Cu2+ FORM FROM NONAQUEOUS SYSTEM
Acta Polymerica SinicaIssue 1, Pages: 39-43(2003)
作者机构:
作者简介:
基金信息:
DOI:
CLC:
Published:20 February 2003,
扫 描 看 全 文
LI Jiazheng, SHI Zuoqing, FAN Yunge. COORDINATION SORPTION OF AMINES ON SULPHONIC RESIN IN Cu2+ FORM FROM NONAQUEOUS SYSTEM. [J]. Acta Polymerica Sinica (1):39-43(2003)
DOI:
LI Jiazheng, SHI Zuoqing, FAN Yunge. COORDINATION SORPTION OF AMINES ON SULPHONIC RESIN IN Cu2+ FORM FROM NONAQUEOUS SYSTEM. [J]. Acta Polymerica Sinica (1):39-43(2003)DOI:
COORDINATION SORPTION OF AMINES ON SULPHONIC RESIN IN Cu2+ FORM FROM NONAQUEOUS SYSTEM
Some of the natural products are water unsolvable.For such products
it’s better that the sorption should be carried out in nonaqueous system.But common sorption resins are not effective in nonaqueous system
the simple reason for which is that the sorption on common resins is mainly based on the hydrophobic interaction between the resins and the adsorbate.So it is practically important to exploit resins which fit the nonaqueous system and study their sorption behavior.In this paper
a serious of coordination sorption resins have been prepared by loading different transition metal ions on the macroporous sulphonic resin
and the sorption of aniline
N-methyl aniline and N
N-dimethyl aniline on sulphonic resin in Cu2+ form from ethanol
ethyl acetate and bexane has been studied and compared with that from water. The sulphonic resin in Cu2+ form has the highest sorption capacity from hexane
and has lower sorption capacities from ethanol
ethyl acetate and water sequentially.In all the media
the resin shows the highest sorption affinity for aniline
moderate for N-methylaniline and the lowest for N
N-dimethylaniline. The different sorption affinities for the three anilines are attributed to the different steric hindrance of different anilines coordinating to Cu2+ on the resin.The sorptive isotherms of the anilines from different media fit the Freundlich equation
and the sorption enthalpies have been calculated.The sorption enthalpies of aniline from water and ethanol are higher
but nearly zero from ethyl acetate and hexane. The difference of sorption enthalpies from different media is attributed to the coordination of water to Cu2+ on the resin and the different swelling ratio in various media.The sorption rate of the anilines from water is the highest and decreases from ethanol
ethyl acetate and hexane sequentially.The different sorption rates are also attributed to the different swelling ratio in different media.All these conclusions will be useful for applying the coordination resin to the sorptive separation of some water unsolvable natural products.