Dynamics of bottlebrush polymers

Bichler, Karin J.; Jakobi, Bruno; Schneider, Gerald J.

doi:10.1051/epjconf/202227201002

Dynamics of bottlebrush polymers

Journal Article · Thu Nov 17 00:00:00 EST 2022 · EPJ Web of Conferences (Online)

DOI:https://doi.org/10.1051/epjconf/202227201002· OSTI ID:2271671

Bichler, Karin J. ^[1]; Jakobi, Bruno ^[2]; Schneider, Gerald J. ^[2]

Louisiana State Univ., Baton Rouge, LA (United States); Louisiana State University
Louisiana State Univ., Baton Rouge, LA (United States)

Bottlebrushes are an interesting class of polymers which shows intriguing material properties often associated with dynamics. While dynamical phenomena in linear polymers are well understood and existing theories can describe them in a good way, bottlebrush dynamics have only rarely been investigated. Therefore, we performed dielectric spectroscopy and quasi-elastic neutron scattering to study the dynamics of polydimethylsiloxane-based bottlebrush polymers, PDMS-g-PDMS focusing mostly on the segmental dynamics of the side chains. Comparing the relaxation times of the α – relaxation, tracked with dielectric spectroscopy, of bottlebrush polymers with those of their respective linear side chains show a slowing down once the side chains are attached to the backbone. This effect diminishes and finally vanishes with increasing side chain length. The time and length scale, offered by quasi-elastic neutron scattering, fits for the segmental dynamics together with faster processes. The Q-dependence of the segmental relaxation times allows to classify bottlebrush polymers as heterogenous including a non-Gaussian character. For such a dynamical system, the mean square displacement needs to be separated into single processes before an overall mean square displacement can be generated by applying the time temperature superposition principle.

View Accepted Manuscript (DOE)

Research Organization:: Louisiana State University, Baton Rouge, LA, United States

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC0019050

OSTI ID:: 2271671

Journal Information:: EPJ Web of Conferences (Online), Journal Name: EPJ Web of Conferences (Online) Vol. 272; ISSN 2100-014X

Publisher:: EDP SciencesCopyright Statement

Country of Publication:: United States

Language:: English

References (20)

Soft Poly(dimethylsiloxane) Elastomers from Architecture-Driven Entanglement Free Design Cai, Li-Heng; Kodger, Thomas E.; Guerra, Rodrigo E. Advanced Materials, Vol. 27, Issue 35 https://doi.org/10.1002/adma.201502771	journal	August 2015
Comb and Bottlebrush Polymers with Superior Rheological and Mechanical Properties Abbasi, Mahdi; Faust, Lorenz; Wilhelm, Manfred Advanced Materials, Vol. 31, Issue 26 https://doi.org/10.1002/adma.201806484	journal	February 2019
Dynamic Homogeneity by Architectural Design - Bottlebrush Polymers Grigoriadis, Christos; Nese, Alper; Matyjaszewski, Krzysztof Macromolecular Chemistry and Physics, Vol. 213, Issue 13 https://doi.org/10.1002/macp.201200064	journal	May 2012
Effect of the degree of branching on the glass transition temperature of polyesters Khalyavina, Anna; Häußler, Liane; Lederer, Albena Polymer, Vol. 53, Issue 5 https://doi.org/10.1016/j.polymer.2012.01.020	journal	February 2012
Materials Design of Highly Branched Bottlebrush Polymers at the Intersection of Modeling, Synthesis, Processing, and Characterization Pan, Tianyuan; Dutta, Sarit; Kamble, Yash Chemistry of Materials, Vol. 34, Issue 5 https://doi.org/10.1021/acs.chemmater.1c04030	journal	February 2022
Linear Viscoelastic Response of Unentangled Polystyrene Bottlebrushes Alexandris, Stelios; Peponaki, Katerina; Petropoulou, Paraskevi Macromolecules, Vol. 53, Issue 10 https://doi.org/10.1021/acs.macromol.0c00266	journal	May 2020
Rheo-Optical and Dielectric Study on Dynamics of Bottlebrush-like Polymacromonomer Consisting of a Polyisoprene Main Chain and Polystyrene Side Chains Iwawaki, Hiroshi; Urakawa, Osamu; Inoue, Tadashi Macromolecules, Vol. 53, Issue 16 https://doi.org/10.1021/acs.macromol.0c01041	journal	August 2020
Dynamics of PDMS- g -PDMS Bottlebrush Polymers by Broadband Dielectric Spectroscopy Jakobi, Bruno; Bichler, Karin J.; Sokolova, Anna Macromolecules, Vol. 53, Issue 19 https://doi.org/10.1021/acs.macromol.0c01277	journal	September 2020
Short-Time Dynamics of PDMS- g -PDMS Bottlebrush Polymer Melts Investigated by Quasi-Elastic Neutron Scattering Bichler, Karin J.; Jakobi, Bruno; Sakai, Victoria García Macromolecules, Vol. 53, Issue 21 https://doi.org/10.1021/acs.macromol.0c01846	journal	October 2020
Linear Rheology of Polyolefin-Based Bottlebrush Polymers Dalsin, Samuel J.; Hillmyer, Marc A.; Bates, Frank S. Macromolecules, Vol. 48, Issue 13 https://doi.org/10.1021/acs.macromol.5b01153	journal	June 2015
Universality of the Entanglement Plateau Modulus of Comb and Bottlebrush Polymer Melts Liang, Heyi; Morgan, Benjamin J.; Xie, Guojun Macromolecules, Vol. 51, Issue 23 https://doi.org/10.1021/acs.macromol.8b01761	journal	November 2018
Structural Analysis of Ultrasoft PDMS- g -PDMS Shell-Only Particles Bichler, Karin J.; Jakobi, Bruno; Huber, Stefan O. Macromolecules, Vol. 53, Issue 1 https://doi.org/10.1021/acs.macromol.9b01598	journal	December 2019
Universality of Time–Temperature Scaling Observed by Neutron Spectroscopy on Bottlebrush Polymers Bichler, Karin J.; Jakobi, Bruno; Sakai, Victoria García Nano Letters, Vol. 21, Issue 10 https://doi.org/10.1021/acs.nanolett.1c01379	journal	May 2021
Consequences of Grafting Density on the Linear Viscoelastic Behavior of Graft Polymers Haugan, Ingrid N.; Maher, Michael J.; Chang, Alice B. ACS Macro Letters, Vol. 7, Issue 5 https://doi.org/10.1021/acsmacrolett.8b00116	journal	April 2018
Linear Rheological Response of a Series of Densely Branched Brush Polymers Hu, Miao; Xia, Yan; McKenna, Gregory B. Macromolecules, Vol. 44, Issue 17, p. 6935-6943 https://doi.org/10.1021/ma2009673	journal	September 2011
Quasielastic Neutron Scattering Study on the Dynamics of Poly(alkylene oxide)s Gerstl, C.; Schneider, G. J.; Fuxman, A. Macromolecules, Vol. 45, Issue 10 https://doi.org/10.1021/ma3003399	journal	May 2012
Small-Angle Neutron Scattering Analysis of Bottlebrush Polymers Prepared via Grafting-Through Polymerization Pesek, Stacy L.; Li, Xianyu; Hammouda, Boualem Macromolecules, Vol. 46, Issue 17 https://doi.org/10.1021/ma401246b	journal	August 2013
Molecular Weight Dependence of Glassy Dynamics in Linear Polymers Revisited Hintermeyer, J.; Herrmann, A.; Kahlau, R. Macromolecules, Vol. 41, Issue 23 https://doi.org/10.1021/ma8016794	journal	December 2008
Molecular Weight Dependence of Zero-Shear Viscosity in Atactic Polypropylene Bottlebrush Polymers Dalsin, Samuel J.; Hillmyer, Marc A.; Bates, Frank S. ACS Macro Letters, Vol. 3, Issue 5 https://doi.org/10.1021/mz500082h	journal	April 2014
Structure, function, self-assembly, and applications of bottlebrush copolymers Verduzco, Rafael; Li, Xianyu; Pesek, Stacy L. Chemical Society Reviews, Vol. 44, Issue 8 https://doi.org/10.1039/C4CS00329B	journal	January 2015

Similar Records

Dynamics of PDMS-g-PDMS Bottlebrush Polymers by Broadband Dielectric Spectroscopy

Journal Article · Thu Sep 17 20:00:00 EDT 2020 · Macromolecules · OSTI ID:1773778

Related Subjects

36 MATERIALS SCIENCE
QENS
bottlebrush polymers
mean square displacement
neutron scattering
quasi-elastic neutron scattering

Dynamics of bottlebrush polymers

Citation Formats

References (20)

Similar Records

Related Subjects