Poly(urethane/malonamide) dendritic structures featuring blocked/deblocked isocyanate units
Literature Information
Publication Date
2011-02-03
DOI
10.1039/C0PY00358A
Impact Factor
5.582
Authors
Yung-Chung Chen, Wen-Yi Wu, Tzong-Yuan Juang, Shenghong A. Dai, Wen-Chiung Su, Ying-Ling Liu, Rong-Ho Lee, Ru-Jong Jeng
View Original
Abstract
We have used 4-isocyanato-4′-(3,3-dimethyl-2,4-dioxoazetidino)diphenylmethane and diethylenetriamine as building blocks to synthesize novel poly(urethane/malonamide) dendrons possessing terminal methyl ethyl ketoxime (MEKO) units (blocked isocyanategroups). Heating the MEKO-containing dendrons regenerated the terminal isocyanategroups. Subsequently, the regenerated isocyanategroups would react with any compound with active hydrogens. In one example, the dendrons with the deblocked isocyanates further reacted with stearyl alcohol (C18-OH) to form the corresponding dendrons presenting C18 moieties. This deblocking strategy allows replacement of reactive exterior groups with desired functionality for the construction of dendritic macromolecules.
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Source Journal
Polymer Chemistry
CiteScore:
8.6
Self-citation Rate:
7.3%
Articles per Year:
457
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2-[({[(2-Methyl-2-propanyl)oxy]carbonyl}amino)methyl]isonicotinic acid
CAS Number:
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Molecular Formula:
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