ICCAS OpenIR
pH and salt effects on the aggregation behaviour of star polymer with G1 polyamidoamine core and terminal amphiphilic blocks
Yang, Hui1,2; Hu, Changchao1; Wu, Xu1,2; Chen, Huibo1; Wang, Jinben1
2010
Source PublicationSUPRAMOLECULAR CHEMISTRY
ISSN1061-0278
Volume22Issue:9Pages:477-482
AbstractIn this study, the pH and salt effects on the aggregation behaviour of star polymer, with G1 polyamidoamine as the core and poly(propylene oxide)-block-poly(ethylene oxide) as the terminal branches, were investigated. The results from pH and turbidimetric titration experiments showed that with the pH value increasing from 2.0 to 10.0, the solution transforms from transparent to turbid at pKa=5.5 and eventually presents phase separation at the pH value above 7.5. As revealed by dynamic light scattering and transmission electron microscopy measurements, the size of the aggregates of star polymer becomes bigger with the increase in the pH value or in the presence of salt. It was found that the extent of the salt effect on the aggregation behaviour follows the sequence: C6H5COONaNa2SO4 NaCl. [image omitted].
KeywordStar Polymer Supramolecule Aggregation Behaviour Ph Effect Salt Effect
DOI10.1080/10610278.2010.483731
Indexed BySCI
Language英语
WOS IDWOS:000280677200001
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/71254
Collection中国科学院化学研究所
Corresponding AuthorWang, Jinben
Affiliation1.Chinese Acad Sci, Inst Chem, Key Lab Colloid Interface & Chem Thermodynam, Beijing 100190, Peoples R China
2.Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China
Recommended Citation
GB/T 7714
Yang, Hui,Hu, Changchao,Wu, Xu,et al. pH and salt effects on the aggregation behaviour of star polymer with G1 polyamidoamine core and terminal amphiphilic blocks[J]. SUPRAMOLECULAR CHEMISTRY,2010,22(9):477-482.
APA Yang, Hui,Hu, Changchao,Wu, Xu,Chen, Huibo,&Wang, Jinben.(2010).pH and salt effects on the aggregation behaviour of star polymer with G1 polyamidoamine core and terminal amphiphilic blocks.SUPRAMOLECULAR CHEMISTRY,22(9),477-482.
MLA Yang, Hui,et al."pH and salt effects on the aggregation behaviour of star polymer with G1 polyamidoamine core and terminal amphiphilic blocks".SUPRAMOLECULAR CHEMISTRY 22.9(2010):477-482.
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