Phosphazene-Promoted Metal-Free Ring-Opening Polymerization of Ethylene Oxide Initiated by Carboxylic Acid
Тип публикации: Journal Article
Дата публикации: 2014-02-21
scimago Q1
wos Q1
БС1
SJR: 1.352
CiteScore: 9
Impact factor: 5.2
ISSN: 00249297, 15205835
Materials Chemistry
Organic Chemistry
Inorganic Chemistry
Polymers and Plastics
Краткое описание
The effectiveness of carboxylic acid as initiator for the anionic ring-opening polymerization of ethylene oxide was investigated with a strong phosphazene base (t-BuP4) used as promoter. Kinetic study showed an induction period, i.e., transformation of carboxylic acid to hydroxyl ester, followed by slow chain growth together with simultaneous and fast end-group transesterification, which led to poly(ethylene oxide) (PEO) consisting of monoester (monohydroxyl), diester, and dihydroxyl species. An appropriate t-BuP4/acid ratio was proven to be essential to achieve better control over the polymerization and low dispersity of PEO. This work provides important information and enriches the toolbox for macromolecular and biomolecular engineering with protic initiating sites.
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ГОСТ
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Zhao J. et al. Phosphazene-Promoted Metal-Free Ring-Opening Polymerization of Ethylene Oxide Initiated by Carboxylic Acid // Macromolecules. 2014. Vol. 47. No. 5. pp. 1693-1698.
ГОСТ со всеми авторами (до 50)
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Zhao J., Jerala R., Gnanou Y., Hadjichristidis N. Phosphazene-Promoted Metal-Free Ring-Opening Polymerization of Ethylene Oxide Initiated by Carboxylic Acid // Macromolecules. 2014. Vol. 47. No. 5. pp. 1693-1698.
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TY - JOUR
DO - 10.1021/ma500067j
UR - https://doi.org/10.1021/ma500067j
TI - Phosphazene-Promoted Metal-Free Ring-Opening Polymerization of Ethylene Oxide Initiated by Carboxylic Acid
T2 - Macromolecules
AU - Zhao, Junpeng
AU - Jerala, Roman
AU - Gnanou, Yves
AU - Hadjichristidis, N.
PY - 2014
DA - 2014/02/21
PB - American Chemical Society (ACS)
SP - 1693-1698
IS - 5
VL - 47
SN - 0024-9297
SN - 1520-5835
ER -
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BibTex (до 50 авторов)
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@article{2014_Zhao,
author = {Junpeng Zhao and Roman Jerala and Yves Gnanou and N. Hadjichristidis},
title = {Phosphazene-Promoted Metal-Free Ring-Opening Polymerization of Ethylene Oxide Initiated by Carboxylic Acid},
journal = {Macromolecules},
year = {2014},
volume = {47},
publisher = {American Chemical Society (ACS)},
month = {feb},
url = {https://doi.org/10.1021/ma500067j},
number = {5},
pages = {1693--1698},
doi = {10.1021/ma500067j}
}
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MLA
Скопировать
Zhao, Junpeng, et al. “Phosphazene-Promoted Metal-Free Ring-Opening Polymerization of Ethylene Oxide Initiated by Carboxylic Acid.” Macromolecules, vol. 47, no. 5, Feb. 2014, pp. 1693-1698. https://doi.org/10.1021/ma500067j.