TEMPO oxidized cellulose thin films analysed by QCM-D and AFM

Tuomas Hänninen, Hannes Orelma, Janne Laine

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

2,2,6,6-Tetramethylpiperidine 1-oxyl (TEMPO) oxidized cellulose has quickly become a highly utilized material in the production of nanofibrillar cellulose (NFC) and a functionalization strategy for cellulosic materials. In this study we have prepared oxidized cellulose films by TEMPO oxidation and used a quartz crystal microbalance with dissipation monitoring to analyse changes in the film properties. Oxidation was performed at different pH values and reaction times for amorphous and NFC surfaces were also varied. By varying TEMPO oxidation conditions the carboxylation efficiency, stability, and topographical sensitivity of TEMPO oxidation can be optimized for production of a required functionalization level without causing unwanted damage to the cellulosic material. The topographical changes on oxidized cellulose films were further characterized by AFM. Although both surfaces reacted in a similar manner to oxidation, the NFC film was found to be more stable during the oxidation than amorphous cellulose film. The results in this article can be utilized for the functionalization of cellulosic materials in a more controlled manner and for tuning the required carboxylation levels without causing permanent changes to the functionalized cellulosic material.

Original languageEnglish
Pages (from-to)165-171
Number of pages7
JournalCellulose
Volume22
Issue number1
DOIs
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed

Fingerprint

oxidized cellulose
Cellulose films
Thin films
Oxidation
Carboxylation
Cellulose
Quartz crystal microbalances
Amorphous films
TEMPO
Tuning
Monitoring

Keywords

  • Carboxylation
  • Cellulose
  • Cellulose thin film
  • QCM-D
  • TEMPO mediated oxidation

Cite this

@article{a121d1eba9024780aeec6ea1358ce083,
title = "TEMPO oxidized cellulose thin films analysed by QCM-D and AFM",
abstract = "2,2,6,6-Tetramethylpiperidine 1-oxyl (TEMPO) oxidized cellulose has quickly become a highly utilized material in the production of nanofibrillar cellulose (NFC) and a functionalization strategy for cellulosic materials. In this study we have prepared oxidized cellulose films by TEMPO oxidation and used a quartz crystal microbalance with dissipation monitoring to analyse changes in the film properties. Oxidation was performed at different pH values and reaction times for amorphous and NFC surfaces were also varied. By varying TEMPO oxidation conditions the carboxylation efficiency, stability, and topographical sensitivity of TEMPO oxidation can be optimized for production of a required functionalization level without causing unwanted damage to the cellulosic material. The topographical changes on oxidized cellulose films were further characterized by AFM. Although both surfaces reacted in a similar manner to oxidation, the NFC film was found to be more stable during the oxidation than amorphous cellulose film. The results in this article can be utilized for the functionalization of cellulosic materials in a more controlled manner and for tuning the required carboxylation levels without causing permanent changes to the functionalized cellulosic material.",
keywords = "Carboxylation, Cellulose, Cellulose thin film, QCM-D, TEMPO mediated oxidation",
author = "Tuomas H{\"a}nninen and Hannes Orelma and Janne Laine",
year = "2015",
doi = "10.1007/s10570-014-0530-x",
language = "English",
volume = "22",
pages = "165--171",
journal = "Cellulose",
issn = "0969-0239",
publisher = "Springer",
number = "1",

}

TEMPO oxidized cellulose thin films analysed by QCM-D and AFM. / Hänninen, Tuomas; Orelma, Hannes; Laine, Janne.

In: Cellulose, Vol. 22, No. 1, 2015, p. 165-171.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - TEMPO oxidized cellulose thin films analysed by QCM-D and AFM

AU - Hänninen, Tuomas

AU - Orelma, Hannes

AU - Laine, Janne

PY - 2015

Y1 - 2015

N2 - 2,2,6,6-Tetramethylpiperidine 1-oxyl (TEMPO) oxidized cellulose has quickly become a highly utilized material in the production of nanofibrillar cellulose (NFC) and a functionalization strategy for cellulosic materials. In this study we have prepared oxidized cellulose films by TEMPO oxidation and used a quartz crystal microbalance with dissipation monitoring to analyse changes in the film properties. Oxidation was performed at different pH values and reaction times for amorphous and NFC surfaces were also varied. By varying TEMPO oxidation conditions the carboxylation efficiency, stability, and topographical sensitivity of TEMPO oxidation can be optimized for production of a required functionalization level without causing unwanted damage to the cellulosic material. The topographical changes on oxidized cellulose films were further characterized by AFM. Although both surfaces reacted in a similar manner to oxidation, the NFC film was found to be more stable during the oxidation than amorphous cellulose film. The results in this article can be utilized for the functionalization of cellulosic materials in a more controlled manner and for tuning the required carboxylation levels without causing permanent changes to the functionalized cellulosic material.

AB - 2,2,6,6-Tetramethylpiperidine 1-oxyl (TEMPO) oxidized cellulose has quickly become a highly utilized material in the production of nanofibrillar cellulose (NFC) and a functionalization strategy for cellulosic materials. In this study we have prepared oxidized cellulose films by TEMPO oxidation and used a quartz crystal microbalance with dissipation monitoring to analyse changes in the film properties. Oxidation was performed at different pH values and reaction times for amorphous and NFC surfaces were also varied. By varying TEMPO oxidation conditions the carboxylation efficiency, stability, and topographical sensitivity of TEMPO oxidation can be optimized for production of a required functionalization level without causing unwanted damage to the cellulosic material. The topographical changes on oxidized cellulose films were further characterized by AFM. Although both surfaces reacted in a similar manner to oxidation, the NFC film was found to be more stable during the oxidation than amorphous cellulose film. The results in this article can be utilized for the functionalization of cellulosic materials in a more controlled manner and for tuning the required carboxylation levels without causing permanent changes to the functionalized cellulosic material.

KW - Carboxylation

KW - Cellulose

KW - Cellulose thin film

KW - QCM-D

KW - TEMPO mediated oxidation

UR - http://www.scopus.com/inward/record.url?scp=84925535131&partnerID=8YFLogxK

U2 - 10.1007/s10570-014-0530-x

DO - 10.1007/s10570-014-0530-x

M3 - Article

VL - 22

SP - 165

EP - 171

JO - Cellulose

JF - Cellulose

SN - 0969-0239

IS - 1

ER -