ICCAS OpenIR
Preparation and study of alkyl carbamylated polyrotaxanes with large hysteresis during sol-gel phase transition
Li, Wei1; Guo, Yanli1; He, Peng1; Yang, Rong1; Li, Xingguo1; Chen, Ye1; Liang, Dehai1; Kidowaki, Masatoshi2; Ito, Kohzo2
2011
Source PublicationPOLYMER CHEMISTRY
ISSN1759-9954
Volume2Issue:8Pages:1797-1802
AbstractEthyl carbamylated polyrotaxane (ECPR) and propyl carbamylated polyrotaxane (PCPR) were prepared based on the reactions between ethyl/propyl isocyanate and polyrotaxane (PR) in anhydrous DMSO under an argon atmosphere. By changing the alkyl type and substitution ratio, the PR derivative with good water-solubility was obtained and its solutions showed reversible sol-gel phase transition. During the heating process, transition temperature from sol to gel decreased from 32 degrees C to 18 degrees C with increasing the solution concentration from 2.44% to 13.5%, while in the cooling process, all the gels with various concentration did not turn into sols until the temperature decreased to 1 degrees C, exhibiting large hysteresis between heating and cooling.
DOI10.1039/c1py00081k
Indexed BySCI
Language英语
WOS IDWOS:000292965500027
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72950
Collection中国科学院化学研究所
Corresponding AuthorGuo, Yanli
Affiliation1.Peking Univ, BNLMS, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
2.Univ Tokyo, Grad Sch Frontier Sci, Dept Adv Mat Sci, Kashiwa, Chiba 2778562, Japan
Recommended Citation
GB/T 7714
Li, Wei,Guo, Yanli,He, Peng,et al. Preparation and study of alkyl carbamylated polyrotaxanes with large hysteresis during sol-gel phase transition[J]. POLYMER CHEMISTRY,2011,2(8):1797-1802.
APA Li, Wei.,Guo, Yanli.,He, Peng.,Yang, Rong.,Li, Xingguo.,...&Ito, Kohzo.(2011).Preparation and study of alkyl carbamylated polyrotaxanes with large hysteresis during sol-gel phase transition.POLYMER CHEMISTRY,2(8),1797-1802.
MLA Li, Wei,et al."Preparation and study of alkyl carbamylated polyrotaxanes with large hysteresis during sol-gel phase transition".POLYMER CHEMISTRY 2.8(2011):1797-1802.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, Wei]'s Articles
[Guo, Yanli]'s Articles
[He, Peng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Wei]'s Articles
[Guo, Yanli]'s Articles
[He, Peng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Wei]'s Articles
[Guo, Yanli]'s Articles
[He, Peng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.