|Table of Contents|

Catalytic synthesis of rubber antioxidant RD by [MPS]2HSO-4 ionic liquids(PDF)

《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

Issue:
2017年03期
Page:
40-44
Research Field:
Publishing date:

Info

Title:
Catalytic synthesis of rubber antioxidant RD by [MPS]2HSO-4 ionic liquids
Author(s):
SHU YanfangLIANG JinhuaLIU ChaoyingYANG XiaoruiZHU Jianliang
College of Biotechnology and Pharmaceutical Engineering,Nanjing Tech University,Nanjing 211800,China
Keywords:
dicationic ionic liquids functionalized catalysis one-step method process antioxidant RD
PACS:
TQ517.4
DOI:
10.3969/j.issn.1671-7627.2017.03.008
Abstract:
A functional Brønsted acid binuclear imidazole ionic liquid catalyst [MPS]2HSO-4 was synthesized with imidazole,sodium ethoxide,1,4-dibromobutane,1,3-propane sultone as raw primary materials.Its structure was characterized by Fourier transform infrared spectroscopy(FT-IR)and 1H nuclear magnetic resonance spectroscopy(1H NMR).The catalytic performance of the prepared ionic liquid catalyst used in the synthesizing a rubber antioxidant RD by one-step process of acetone and aniline was systematically investigated.The [MPS]2HSO-4 exhibited the superior catalytic performance.Results indicated that the conversion ratio of aniline and the selectivity of RD reached 93.5% and 40.2% respectively under the optimized reaction conditions of reaction temperature of 140 ℃,acetone adding time of 5 h,the molar ratio of acetone to aniline of 6:1 and the mass ratio of catalyst to anline of 6:28.

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Last Update: 2017-05-31