Synthesis of isosorbide-based polycarbonates via melt polycondensation catalyzed by quaternary ammonium ionic liquids

CORC > 过程工程研究所 > 中国科学院过程工程研究所 > 多相复杂系统国家重点实验室

	Synthesis of isosorbide-based polycarbonates via melt polycondensation catalyzed by quaternary ammonium ionic liquids
	Sun, Wei 1,2; Xu, Fei 2; Cheng, Weiguo 2; Sun, Jian 2; Ning, Guoqing 1; Zhang, Suojiang 2
刊名	CHINESE JOURNAL OF CATALYSIS
	2017-05-01
卷号	38 期号:5 页码:908-917
关键词	Quaternary ammonium ionic liquid catalyst Isosorbide Polycarbonate Melt polycondensation Aliphatic diol
ISSN号	0253-9837
英文摘要	A series of quaternary aMmonium ionic liquids(ILs) were synthesized and employed as catalysts for the production of poly(isosorbide carbonate) (PIC) from diphenyl carbonate and isosorbide via a melt polycondensation process. The relationship between the anions of the ILs and the catalytic activities was investigated, and the readily-prepared IL tetraethylammonium imidazolate (TEA!) was found to exhibit the highest catalytic activity. After optimizing the reaction conditions, a PIC with a weight-average molecular weight (M-w) of 25600 g/mol was obtained, in conjunction with an isosorbide conversion of 92%. As a means of modifying the molecular flexibility and thermal properties of the PIC, poly(aliphatic diol-co-isosorbide carbonate)s (PAIC)s were successfully synthesized, again using TEAI, and polymers with Mw values ranging from 29000 to 112000 g/mol were obtained. C-13 NMR analyses determined that the PAIC specimens had random microstructures, while differential scanning calorimetry demonstrated that each of the PAICs were amorphous and had glass transition temperatures ranging from 50 to 115 degrees C. Thermogravimetric analyses found Td-s% values ranging from 316 to 332 degrees C for these polymers. Based on these data, it is evident that the incorporation of linear or cyclohexane-based diol repeating units changed the thermal properties of the PIC. (C) 2017, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]	Chemistry ; Engineering
关键词[WOS]	SOLID-STATE POLYMERIZATION ; WEIGHT ALIPHATIC POLYCARBONATES ; RENEWABLE RESOURCES ; DIMETHYL CARBONATE ; SUGAR DIOLS ; POLYMERS ; COPOLYCARBONATES ; ACID ; DIOXIDE ; 1,4/3,6-DIANHYDRO-D-GLUCITOL
收录类别	SCI
语种	英语
WOS记录号	WOS:000402346400016
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/22546]
专题	过程工程研究所_多相复杂系统国家重点实验室
作者单位	1.China Univ Petr, Coll Chem & Chem Engn, Beijing 102249, Peoples R China 2.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Key Lab Green Proc & Engn,Inst Proc Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Sun, Wei,Xu, Fei,Cheng, Weiguo,et al. Synthesis of isosorbide-based polycarbonates via melt polycondensation catalyzed by quaternary ammonium ionic liquids[J]. CHINESE JOURNAL OF CATALYSIS,2017,38(5):908-917.
APA	Sun, Wei,Xu, Fei,Cheng, Weiguo,Sun, Jian,Ning, Guoqing,&Zhang, Suojiang.(2017).Synthesis of isosorbide-based polycarbonates via melt polycondensation catalyzed by quaternary ammonium ionic liquids.CHINESE JOURNAL OF CATALYSIS,38(5),908-917.
MLA	Sun, Wei,et al."Synthesis of isosorbide-based polycarbonates via melt polycondensation catalyzed by quaternary ammonium ionic liquids".CHINESE JOURNAL OF CATALYSIS 38.5(2017):908-917.