Fractionation of lignin for selective shape memory effects at elevated temperatures

Ngoc A. Nguyen; Christopher C. Bowland; Peter V. Bonnesen; Kenneth C. Littrell; Jong K. Keum; Amit K. Naskar

doi:10.3390/MA13081940

Fractionation of lignin for selective shape memory effects at elevated temperatures

Ngoc A. Nguyen, Christopher C. Bowland, Peter V. Bonnesen, Kenneth C. Littrell, Jong K. Keum, Amit K. Naskar

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

4 Scopus citations

Abstract

We report a facile approach to control the shape memory effects and thermomechanical characteristics of a lignin-based multiphase polymer. Solvent fractionation of a syringylpropane-rich technical organosolv lignin resulted in selective lignin structures having excellent thermal stability coupled with high stiffness and melt-flow resistance. The fractionated lignins were reacted with rubber in melt-phase to form partially networked elastomer enabling selective programmability of the material shape either at 70 °C, a temperature that is high enough for rubbery matrix materials, or at an extremely high temperature, 150 °C. Utilizing appropriate functionalities in fractionated lignins, tunable shape fixity with high strain and stress recovery, particularly high-stress tolerance were maintained. Detailed studies of lignin structures and chemistries were correlated to molecular rigidity, morphology, and stress relaxation, as well as shape memory effects of the materials. The fractionation of lignin enabled enrichment of specific lignin properties for efficient shape memory effects that broaden the materials' application window. Electron microscopy, melt-rheology, dynamic mechanical analysis and ultra-small angle neutron scattering were conducted to establish morphology of acrylonitrile butadiene rubber (NBR)-lignin elastomers from solvent fractionated lignins.

Original language	English
Article number	1940
Journal	Materials
Volume	13
Issue number	8
DOIs	https://doi.org/10.3390/MA13081940
State	Published - Apr 1 2020

Funding

Funding: This research was conducted at Oak Ridge National Laboratory (ORNL), which is managed by UT Battelle, LLC, for the US Department of Energy (DOE) under contract DE-AC05-00OR22725. The work was sponsored by the BioEnergy Technologies Office within the DOE Office of Energy Efficiency and Renewable Energy. Acknowledgments: USANS measurements used resources at Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. SEM and NMR measurements used resources at the Center for Nanophase Materials Sciences, which is sponsored by the ORNL Scientific User Facilities Division and the DOE Office of Basic Research Sciences. This research was conducted at Oak Ridge National Laboratory (ORNL), which is managed by UT Battelle, LLC, for the US Department of Energy (DOE) under contract DE-AC05-00OR22725. The work was sponsored by the BioEnergy Technologies Office within the DOE Office of Energy Efficiency and Renewable Energy. USANS measurements used resources at Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. SEM and NMR measurements used resources at the Center for Nanophase Materials Sciences, which is sponsored by the ORNL Scientific User Facilities Division and the DOE Office of Basic Research Sciences.

Keywords

Fractionation
Intrinsic viscosity
Lignin
Shape fixity
Shape memory
Stress recovery
Thermomechanical property

Access to Document

10.3390/MA13081940

Cite this

@article{30387596f2834f4f8a0e4c4efbc62141,

title = "Fractionation of lignin for selective shape memory effects at elevated temperatures",

abstract = "We report a facile approach to control the shape memory effects and thermomechanical characteristics of a lignin-based multiphase polymer. Solvent fractionation of a syringylpropane-rich technical organosolv lignin resulted in selective lignin structures having excellent thermal stability coupled with high stiffness and melt-flow resistance. The fractionated lignins were reacted with rubber in melt-phase to form partially networked elastomer enabling selective programmability of the material shape either at 70 °C, a temperature that is high enough for rubbery matrix materials, or at an extremely high temperature, 150 °C. Utilizing appropriate functionalities in fractionated lignins, tunable shape fixity with high strain and stress recovery, particularly high-stress tolerance were maintained. Detailed studies of lignin structures and chemistries were correlated to molecular rigidity, morphology, and stress relaxation, as well as shape memory effects of the materials. The fractionation of lignin enabled enrichment of specific lignin properties for efficient shape memory effects that broaden the materials' application window. Electron microscopy, melt-rheology, dynamic mechanical analysis and ultra-small angle neutron scattering were conducted to establish morphology of acrylonitrile butadiene rubber (NBR)-lignin elastomers from solvent fractionated lignins.",

keywords = "Fractionation, Intrinsic viscosity, Lignin, Shape fixity, Shape memory, Stress recovery, Thermomechanical property",

author = "Nguyen, {Ngoc A.} and Bowland, {Christopher C.} and Bonnesen, {Peter V.} and Littrell, {Kenneth C.} and Keum, {Jong K.} and Naskar, {Amit K.}",

note = "Publisher Copyright: {\textcopyright} 2020 by the authors.",

year = "2020",

month = apr,

day = "1",

doi = "10.3390/MA13081940",

language = "English",

volume = "13",

journal = "Materials",

issn = "1996-1944",

publisher = "MDPI",

number = "8",

}

TY - JOUR

T1 - Fractionation of lignin for selective shape memory effects at elevated temperatures

AU - Nguyen, Ngoc A.

AU - Bowland, Christopher C.

AU - Bonnesen, Peter V.

AU - Littrell, Kenneth C.

AU - Keum, Jong K.

AU - Naskar, Amit K.

PY - 2020/4/1

Y1 - 2020/4/1

N2 - We report a facile approach to control the shape memory effects and thermomechanical characteristics of a lignin-based multiphase polymer. Solvent fractionation of a syringylpropane-rich technical organosolv lignin resulted in selective lignin structures having excellent thermal stability coupled with high stiffness and melt-flow resistance. The fractionated lignins were reacted with rubber in melt-phase to form partially networked elastomer enabling selective programmability of the material shape either at 70 °C, a temperature that is high enough for rubbery matrix materials, or at an extremely high temperature, 150 °C. Utilizing appropriate functionalities in fractionated lignins, tunable shape fixity with high strain and stress recovery, particularly high-stress tolerance were maintained. Detailed studies of lignin structures and chemistries were correlated to molecular rigidity, morphology, and stress relaxation, as well as shape memory effects of the materials. The fractionation of lignin enabled enrichment of specific lignin properties for efficient shape memory effects that broaden the materials' application window. Electron microscopy, melt-rheology, dynamic mechanical analysis and ultra-small angle neutron scattering were conducted to establish morphology of acrylonitrile butadiene rubber (NBR)-lignin elastomers from solvent fractionated lignins.

AB - We report a facile approach to control the shape memory effects and thermomechanical characteristics of a lignin-based multiphase polymer. Solvent fractionation of a syringylpropane-rich technical organosolv lignin resulted in selective lignin structures having excellent thermal stability coupled with high stiffness and melt-flow resistance. The fractionated lignins were reacted with rubber in melt-phase to form partially networked elastomer enabling selective programmability of the material shape either at 70 °C, a temperature that is high enough for rubbery matrix materials, or at an extremely high temperature, 150 °C. Utilizing appropriate functionalities in fractionated lignins, tunable shape fixity with high strain and stress recovery, particularly high-stress tolerance were maintained. Detailed studies of lignin structures and chemistries were correlated to molecular rigidity, morphology, and stress relaxation, as well as shape memory effects of the materials. The fractionation of lignin enabled enrichment of specific lignin properties for efficient shape memory effects that broaden the materials' application window. Electron microscopy, melt-rheology, dynamic mechanical analysis and ultra-small angle neutron scattering were conducted to establish morphology of acrylonitrile butadiene rubber (NBR)-lignin elastomers from solvent fractionated lignins.

KW - Fractionation

KW - Intrinsic viscosity

KW - Lignin

KW - Shape fixity

KW - Shape memory

KW - Stress recovery

KW - Thermomechanical property

UR - http://www.scopus.com/inward/record.url?scp=85084863106&partnerID=8YFLogxK

U2 - 10.3390/MA13081940

DO - 10.3390/MA13081940

M3 - Article

AN - SCOPUS:85084863106

SN - 1996-1944

VL - 13

JO - Materials

JF - Materials

IS - 8

M1 - 1940

ER -

Fractionation of lignin for selective shape memory effects at elevated temperatures

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this