Synthesizing a Trefoil Knotted Block Copolymer via Ring-Expansion Strategy
Abstract
We synthesized a synthetic trefoil knotted poly(e-caprolatone) block-poly(L-lactide) (TK-PLA-b-PCL) via a ring expansion strategy from a trefoil knotted tin (Sn) initiator. Ring closing reaction between the bis-copper(I) templated phenanthro line complex and dibutyldimethoxytin results in a templated trefoil knotted initiator. Furthermore, the bis-copper(I) templated trefoil knotted poly(L-lactide) (TK-PLA) can be synthesized by ring-opening polymerization of L-lactide monomer, and decomplexation reaction of the templated TK-PLA will result in a geniune TK-PLA without constraint from the copper template. Subsequent insertion of e caprolactone in the bis-copper(I) templated TK-PLA forms the templated trefoil knotted block copolymer, i.e., TK-PLA-b-PCL, and the copper-free TK-PLA-b-PCL can be obtained by decomplexation reaction. Finally, both TK-PLA and TK-PLA-b-PCL are analyzed by the 1 H NMR, FT-IR, UV-vis, DLS, and GPC.
- Authors:
-
- ORNL
- Case Western Reserve University
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- OSTI Identifier:
- 1354670
- Grant/Contract Number:
- AC05-00OR22725; NSF-1608457; NSF-1333651
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Macromolecules
- Additional Journal Information:
- Journal Volume: 50; Journal Issue: 4; Journal ID: ISSN 0024-9297
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Cao, Pengfei, Rong, Li-Han, Mangadlao, Joey, and Advincula, Rigoberto C. Synthesizing a Trefoil Knotted Block Copolymer via Ring-Expansion Strategy. United States: N. p., 2017.
Web. https://doi.org/10.1021/acs.macromol.6b02029.
Cao, Pengfei, Rong, Li-Han, Mangadlao, Joey, & Advincula, Rigoberto C. Synthesizing a Trefoil Knotted Block Copolymer via Ring-Expansion Strategy. United States. https://doi.org/10.1021/acs.macromol.6b02029
Cao, Pengfei, Rong, Li-Han, Mangadlao, Joey, and Advincula, Rigoberto C. Tue .
"Synthesizing a Trefoil Knotted Block Copolymer via Ring-Expansion Strategy". United States. https://doi.org/10.1021/acs.macromol.6b02029. https://www.osti.gov/servlets/purl/1354670.
@article{osti_1354670,
title = {Synthesizing a Trefoil Knotted Block Copolymer via Ring-Expansion Strategy},
author = {Cao, Pengfei and Rong, Li-Han and Mangadlao, Joey and Advincula, Rigoberto C},
abstractNote = {We synthesized a synthetic trefoil knotted poly(e-caprolatone) block-poly(L-lactide) (TK-PLA-b-PCL) via a ring expansion strategy from a trefoil knotted tin (Sn) initiator. Ring closing reaction between the bis-copper(I) templated phenanthro line complex and dibutyldimethoxytin results in a templated trefoil knotted initiator. Furthermore, the bis-copper(I) templated trefoil knotted poly(L-lactide) (TK-PLA) can be synthesized by ring-opening polymerization of L-lactide monomer, and decomplexation reaction of the templated TK-PLA will result in a geniune TK-PLA without constraint from the copper template. Subsequent insertion of e caprolactone in the bis-copper(I) templated TK-PLA forms the templated trefoil knotted block copolymer, i.e., TK-PLA-b-PCL, and the copper-free TK-PLA-b-PCL can be obtained by decomplexation reaction. Finally, both TK-PLA and TK-PLA-b-PCL are analyzed by the 1 H NMR, FT-IR, UV-vis, DLS, and GPC.},
doi = {10.1021/acs.macromol.6b02029},
journal = {Macromolecules},
number = 4,
volume = 50,
place = {United States},
year = {2017},
month = {2}
}
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