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Chain-Length-Dependent Photolysis of ortho-Nitrobenzyl-Centered Polymers. / Bachmann, Julian; Petit, Charlotte; Michalek, Lukas; Catel, Yohann; Blasco, Eva; Blinco, James P.; Unterreiner, Andreas Neil; Barner-Kowollik, Christopher.

в: ACS Macro Letters, Том 10, № 4, 20.04.2021, стр. 447-452.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Harvard

Bachmann, J, Petit, C, Michalek, L, Catel, Y, Blasco, E, Blinco, JP, Unterreiner, AN & Barner-Kowollik, C 2021, 'Chain-Length-Dependent Photolysis of ortho-Nitrobenzyl-Centered Polymers', ACS Macro Letters, Том. 10, № 4, стр. 447-452. https://doi.org/10.1021/acsmacrolett.1c00057

APA

Bachmann, J., Petit, C., Michalek, L., Catel, Y., Blasco, E., Blinco, J. P., Unterreiner, A. N., & Barner-Kowollik, C. (2021). Chain-Length-Dependent Photolysis of ortho-Nitrobenzyl-Centered Polymers. ACS Macro Letters, 10(4), 447-452. https://doi.org/10.1021/acsmacrolett.1c00057

Vancouver

Bachmann J, Petit C, Michalek L, Catel Y, Blasco E, Blinco JP и пр. Chain-Length-Dependent Photolysis of ortho-Nitrobenzyl-Centered Polymers. ACS Macro Letters. 2021 Апр. 20;10(4):447-452. https://doi.org/10.1021/acsmacrolett.1c00057

Author

Bachmann, Julian ; Petit, Charlotte ; Michalek, Lukas ; Catel, Yohann ; Blasco, Eva ; Blinco, James P. ; Unterreiner, Andreas Neil ; Barner-Kowollik, Christopher. / Chain-Length-Dependent Photolysis of ortho-Nitrobenzyl-Centered Polymers. в: ACS Macro Letters. 2021 ; Том 10, № 4. стр. 447-452.

BibTeX

@article{07ebad21965745f18fd2d3fd3f90d90b,
title = "Chain-Length-Dependent Photolysis of ortho-Nitrobenzyl-Centered Polymers",
abstract = "Herein, we demonstrate that the photochemical cleavage of linear polymers containing a midchain photocleavable moiety strongly depends on the chain length. Based on an ortho-nitrobenzyl (oNB) difunctional reversible addition-fragmentation chain-transfer agent, well-defined poly(methyl acrylate)s (Mn = 1.59-67.6 kg mol-1, D = 1.3-1.4) were synthesized following a core-first approach. Photolysis at λmax = 350 nm of the ortho-nitrobenzyl moiety led to the generation of equally sized polymer segments. The rate of oNB-driven polymer fragmentation, which can be well described by first-order kinetics, strongly increases with increasing molecular weight in a nonlinear fashion, potentially caused by entropic considerations and is compared to the ideal chain model. The current study thus demonstrates that polymer photolysis is dependent on the polymer chain length, with critical implications for photocleavable network design. ",
keywords = "REVERSIBLE CLICK CHEMISTRY, SWITCHABLE MATERIALS, NETWORKS, ENTROPY, KINETICS, DESIGN",
author = "Julian Bachmann and Charlotte Petit and Lukas Michalek and Yohann Catel and Eva Blasco and Blinco, {James P.} and Unterreiner, {Andreas Neil} and Christopher Barner-Kowollik",
note = "Publisher Copyright: {\textcopyright} 2021 American Chemical Society.",
year = "2021",
month = apr,
day = "20",
doi = "10.1021/acsmacrolett.1c00057",
language = "English",
volume = "10",
pages = "447--452",
journal = "ACS Macro Letters",
issn = "2161-1653",
publisher = "American Chemical Society",
number = "4",

}

RIS

TY - JOUR

T1 - Chain-Length-Dependent Photolysis of ortho-Nitrobenzyl-Centered Polymers

AU - Bachmann, Julian

AU - Petit, Charlotte

AU - Michalek, Lukas

AU - Catel, Yohann

AU - Blasco, Eva

AU - Blinco, James P.

AU - Unterreiner, Andreas Neil

AU - Barner-Kowollik, Christopher

N1 - Publisher Copyright: © 2021 American Chemical Society.

PY - 2021/4/20

Y1 - 2021/4/20

N2 - Herein, we demonstrate that the photochemical cleavage of linear polymers containing a midchain photocleavable moiety strongly depends on the chain length. Based on an ortho-nitrobenzyl (oNB) difunctional reversible addition-fragmentation chain-transfer agent, well-defined poly(methyl acrylate)s (Mn = 1.59-67.6 kg mol-1, D = 1.3-1.4) were synthesized following a core-first approach. Photolysis at λmax = 350 nm of the ortho-nitrobenzyl moiety led to the generation of equally sized polymer segments. The rate of oNB-driven polymer fragmentation, which can be well described by first-order kinetics, strongly increases with increasing molecular weight in a nonlinear fashion, potentially caused by entropic considerations and is compared to the ideal chain model. The current study thus demonstrates that polymer photolysis is dependent on the polymer chain length, with critical implications for photocleavable network design.

AB - Herein, we demonstrate that the photochemical cleavage of linear polymers containing a midchain photocleavable moiety strongly depends on the chain length. Based on an ortho-nitrobenzyl (oNB) difunctional reversible addition-fragmentation chain-transfer agent, well-defined poly(methyl acrylate)s (Mn = 1.59-67.6 kg mol-1, D = 1.3-1.4) were synthesized following a core-first approach. Photolysis at λmax = 350 nm of the ortho-nitrobenzyl moiety led to the generation of equally sized polymer segments. The rate of oNB-driven polymer fragmentation, which can be well described by first-order kinetics, strongly increases with increasing molecular weight in a nonlinear fashion, potentially caused by entropic considerations and is compared to the ideal chain model. The current study thus demonstrates that polymer photolysis is dependent on the polymer chain length, with critical implications for photocleavable network design.

KW - REVERSIBLE CLICK CHEMISTRY

KW - SWITCHABLE MATERIALS

KW - NETWORKS

KW - ENTROPY

KW - KINETICS

KW - DESIGN

UR - http://www.scopus.com/inward/record.url?scp=85105035635&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/68c8a41c-d9f3-38e4-a2a2-fa0bd408b1ff/

U2 - 10.1021/acsmacrolett.1c00057

DO - 10.1021/acsmacrolett.1c00057

M3 - Article

AN - SCOPUS:85105035635

VL - 10

SP - 447

EP - 452

JO - ACS Macro Letters

JF - ACS Macro Letters

SN - 2161-1653

IS - 4

ER -

ID: 86102419