Synthesis and Characterization of Asymmetric A1BA2 Supramolecular Triblock Copolymers via Noncovalent Interactions: A Solution and Solid-State Study

Saibal Bhaumik; Wenpeng Shan; Edwin L. Thomas; Nikos Hadjichristidis

doi:10.1021/acs.macromol.1c01848

Synthesis and Characterization of Asymmetric A1BA2 Supramolecular Triblock Copolymers via Noncovalent Interactions: A Solution and Solid-State Study

Saibal Bhaumik, Wenpeng Shan, Edwin L. Thomas, Nikos Hadjichristidis

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

We present the design, synthesis, and characterization of triple hydrogen-bond-forming precursors and their supramolecular triblock copolymers. Thymine end-functionalized polystyrene-b-polyisoprene (PS-b-PI-Thy) and diaminotriazine end-functionalized polystyrene (PS-DAT) were successfully synthesized via anionic polymerization followed by suitable organic reactions and then solution-mixed to form supramolecular triblocks via hydrogen-bonding interactions. Three different types of asymmetric A1-b-B-sb-A2 supramolecular triblock copolymers were prepared by varying the molecular weight of the A1-b-B diblock copolymers and A2 homopolymers. Proton nuclear magnetic resonance spectroscopy was used for the detailed structural characterization of the polymers in solution, and gel permeation chromatography was used to determine the molecular weight and polydispersity index of all homopolymers and block copolymers. Additionally, transmission electron microscopy and small-angle X-ray scattering measurements were employed to assess the solid-state morphological structures of the supramolecular triple hydrogen-bond triblocks, the diblocks, and single hydrogen-bond mixtures of diblocks with homopolymers.

Original language	English (US)
Journal	Macromolecules
DOIs	https://doi.org/10.1021/acs.macromol.1c01848
State	Published - Nov 22 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-11-24
Acknowledgements: The research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST). SAXS was done at Brookhaven National Laboratory using beamline 12-ID Soft Matter Interfaces (SMI). We thank Dr. Guillaume Freychet and Mikhail Zhernenkov of BNL and V. Subramanian of TAMU for their efforts in obtaining the SAXS data.

ASJC Scopus subject areas

Materials Chemistry
Organic Chemistry
Polymers and Plastics
Inorganic Chemistry

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@article{a9c3ffa0fd224a18a604c79223655159,

title = "Synthesis and Characterization of Asymmetric A1BA2 Supramolecular Triblock Copolymers via Noncovalent Interactions: A Solution and Solid-State Study",

abstract = "We present the design, synthesis, and characterization of triple hydrogen-bond-forming precursors and their supramolecular triblock copolymers. Thymine end-functionalized polystyrene-b-polyisoprene (PS-b-PI-Thy) and diaminotriazine end-functionalized polystyrene (PS-DAT) were successfully synthesized via anionic polymerization followed by suitable organic reactions and then solution-mixed to form supramolecular triblocks via hydrogen-bonding interactions. Three different types of asymmetric A1-b-B-sb-A2 supramolecular triblock copolymers were prepared by varying the molecular weight of the A1-b-B diblock copolymers and A2 homopolymers. Proton nuclear magnetic resonance spectroscopy was used for the detailed structural characterization of the polymers in solution, and gel permeation chromatography was used to determine the molecular weight and polydispersity index of all homopolymers and block copolymers. Additionally, transmission electron microscopy and small-angle X-ray scattering measurements were employed to assess the solid-state morphological structures of the supramolecular triple hydrogen-bond triblocks, the diblocks, and single hydrogen-bond mixtures of diblocks with homopolymers.",

author = "Saibal Bhaumik and Wenpeng Shan and Thomas, {Edwin L.} and Nikos Hadjichristidis",

note = "KAUST Repository Item: Exported on 2021-11-24 Acknowledgements: The research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST). SAXS was done at Brookhaven National Laboratory using beamline 12-ID Soft Matter Interfaces (SMI). We thank Dr. Guillaume Freychet and Mikhail Zhernenkov of BNL and V. Subramanian of TAMU for their efforts in obtaining the SAXS data.",

year = "2021",

month = nov,

day = "22",

doi = "10.1021/acs.macromol.1c01848",

language = "English (US)",

journal = "Macromolecules",

issn = "0024-9297",

publisher = "American Chemical Society",

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T1 - Synthesis and Characterization of Asymmetric A1BA2 Supramolecular Triblock Copolymers via Noncovalent Interactions: A Solution and Solid-State Study

AU - Bhaumik, Saibal

AU - Shan, Wenpeng

AU - Thomas, Edwin L.

AU - Hadjichristidis, Nikos

N1 - KAUST Repository Item: Exported on 2021-11-24 Acknowledgements: The research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST). SAXS was done at Brookhaven National Laboratory using beamline 12-ID Soft Matter Interfaces (SMI). We thank Dr. Guillaume Freychet and Mikhail Zhernenkov of BNL and V. Subramanian of TAMU for their efforts in obtaining the SAXS data.

PY - 2021/11/22

Y1 - 2021/11/22

N2 - We present the design, synthesis, and characterization of triple hydrogen-bond-forming precursors and their supramolecular triblock copolymers. Thymine end-functionalized polystyrene-b-polyisoprene (PS-b-PI-Thy) and diaminotriazine end-functionalized polystyrene (PS-DAT) were successfully synthesized via anionic polymerization followed by suitable organic reactions and then solution-mixed to form supramolecular triblocks via hydrogen-bonding interactions. Three different types of asymmetric A1-b-B-sb-A2 supramolecular triblock copolymers were prepared by varying the molecular weight of the A1-b-B diblock copolymers and A2 homopolymers. Proton nuclear magnetic resonance spectroscopy was used for the detailed structural characterization of the polymers in solution, and gel permeation chromatography was used to determine the molecular weight and polydispersity index of all homopolymers and block copolymers. Additionally, transmission electron microscopy and small-angle X-ray scattering measurements were employed to assess the solid-state morphological structures of the supramolecular triple hydrogen-bond triblocks, the diblocks, and single hydrogen-bond mixtures of diblocks with homopolymers.

AB - We present the design, synthesis, and characterization of triple hydrogen-bond-forming precursors and their supramolecular triblock copolymers. Thymine end-functionalized polystyrene-b-polyisoprene (PS-b-PI-Thy) and diaminotriazine end-functionalized polystyrene (PS-DAT) were successfully synthesized via anionic polymerization followed by suitable organic reactions and then solution-mixed to form supramolecular triblocks via hydrogen-bonding interactions. Three different types of asymmetric A1-b-B-sb-A2 supramolecular triblock copolymers were prepared by varying the molecular weight of the A1-b-B diblock copolymers and A2 homopolymers. Proton nuclear magnetic resonance spectroscopy was used for the detailed structural characterization of the polymers in solution, and gel permeation chromatography was used to determine the molecular weight and polydispersity index of all homopolymers and block copolymers. Additionally, transmission electron microscopy and small-angle X-ray scattering measurements were employed to assess the solid-state morphological structures of the supramolecular triple hydrogen-bond triblocks, the diblocks, and single hydrogen-bond mixtures of diblocks with homopolymers.

UR - http://hdl.handle.net/10754/673731

UR - https://pubs.acs.org/doi/10.1021/acs.macromol.1c01848

U2 - 10.1021/acs.macromol.1c01848

DO - 10.1021/acs.macromol.1c01848

M3 - Article

SN - 0024-9297

JO - Macromolecules

JF - Macromolecules

ER -

Synthesis and Characterization of Asymmetric A1BA2 Supramolecular Triblock Copolymers via Noncovalent Interactions: A Solution and Solid-State Study

Abstract

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