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Preparation of Tadpole-Shaped Amphiphilic Cyclic PS-b-linear PEO via ATRP and Click Chemistry
Dong, Yong-Quan; Tong, Yin-Yin; Dong, Bo-Tao; Du, Fu-Sheng; Li, Zi-Chen
2009-04-28
Source PublicationMACROMOLECULES
ISSN0024-9297
Volume42Issue:8Pages:2940-2948
AbstractAmphiphilic tadpole-shaped copolymers consisting of a polystyrene (PS) ring and a poly(ethylene oxide) (PEO) tail were synthesized via atom transfer radical polymerization (ATRP) and click chemistry. First, PEO with a propargyl group and an ATRP initiating group was prepared via click chemistry and esterification. Then, a diblock copolymer, PEO-b-PS, which contained a pi opargyl group at the junction point and an azide group at the PS chain end, was prepared via ATRP of styrene, followed by transformation of the PS bromo end to an azide group. Finally, cyclization of the PS segment via click chemistry in dilute solution led to the formation of cyclic PS-b-linear PEO (c-PS-b-PEO). Because both the chain length of PEO and the ring size of cyclic PS can be easily tuned, a series of c-PS-b-PEOs was prepared. All of the polymers were characterized with gel permeation chromatography, NMR spectroscopy, FTIR, and matrix-assisted laser desorption time-of-flight mass spectrometry (MALDI-TOF MS). c-PS-b-PEOs showed smaller hydrodynamic volumes compared with their linear precursors. Self-assembly of one c-PS-b-PEO sample and its linear precursor in water was preliminarily investigated by transmission electron microscopy. We found that vesicles were the main morphologies for both polymers, but they were different in size; those from c-PS-b-PEO were much larger.
DOI10.1021/ma802361h
Indexed BySCI
Language英语
WOS IDWOS:000265411400011
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:95[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/66028
Collection中国科学院化学研究所
Corresponding AuthorLi, Zi-Chen
AffiliationPeking Univ, BNLMS, Key Lab Polymer Chem & Phys, Dept Polymer Sci & Engn,Minist Educ,Coll Chem & M, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Dong, Yong-Quan,Tong, Yin-Yin,Dong, Bo-Tao,et al. Preparation of Tadpole-Shaped Amphiphilic Cyclic PS-b-linear PEO via ATRP and Click Chemistry[J]. MACROMOLECULES,2009,42(8):2940-2948.
APA Dong, Yong-Quan,Tong, Yin-Yin,Dong, Bo-Tao,Du, Fu-Sheng,&Li, Zi-Chen.(2009).Preparation of Tadpole-Shaped Amphiphilic Cyclic PS-b-linear PEO via ATRP and Click Chemistry.MACROMOLECULES,42(8),2940-2948.
MLA Dong, Yong-Quan,et al."Preparation of Tadpole-Shaped Amphiphilic Cyclic PS-b-linear PEO via ATRP and Click Chemistry".MACROMOLECULES 42.8(2009):2940-2948.
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