Preparation of photoreactive nanocellulosic materials: Via benzophenone grafting

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Preparation of photoreactive nanocellulosic materials : Via benzophenone grafting. / Orelma, Hannes; Vuoriluoto, Maija; Johansson, Leena Sisko; Campbell, Joseph M.; Filpponen, Erkko; Biesalski, Markus; Rojas , Orlando J.

julkaisussa: RSC Advances, Vuosikerta 6, Nro 88, 2016, s. 85100-85106.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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Orelma, Hannes ; Vuoriluoto, Maija ; Johansson, Leena Sisko ; Campbell, Joseph M. ; Filpponen, Erkko ; Biesalski, Markus ; Rojas , Orlando J. / Preparation of photoreactive nanocellulosic materials : Via benzophenone grafting. Julkaisussa: RSC Advances. 2016 ; Vuosikerta 6, Nro 88. Sivut 85100-85106.

Bibtex - Lataa

@article{fa7fc95244924780aabfcadfe79c7432,
title = "Preparation of photoreactive nanocellulosic materials: Via benzophenone grafting",
abstract = "A method for preparing photo-crosslinkable cellulose nanofibrils (CNF) was investigated. Benzophenone (BP), a UV-radical crosslinker, was chemically grafted to TEMPO-oxidized wood fibers in water/DMSO medium. This resulted in a reduction of carboxyl group content together with an increase of the number density of amide linkages. The BP-functionalized fibres were then microfluidized into TEMPO-oxidized CNF (TOCNF). As evidence of the crosslinking performance, the films of BP-activated TOCNF displayed improved water resistance upon UV curing (even under high energy sonication). In addition to improving wet strength the method is suitable for further modification of CNF, either by utilizing the remaining free carboxyl groups or via photochemical grafting of other substances onto the CNF structure.",
author = "Hannes Orelma and Maija Vuoriluoto and Johansson, {Leena Sisko} and Campbell, {Joseph M.} and Erkko Filpponen and Markus Biesalski and Rojas, {Orlando J.}",
year = "2016",
doi = "10.1039/c6ra15015b",
language = "English",
volume = "6",
pages = "85100--85106",
journal = "RSC Advances",
issn = "2046-2069",
number = "88",

}

RIS - Lataa

TY - JOUR

T1 - Preparation of photoreactive nanocellulosic materials

T2 - Via benzophenone grafting

AU - Orelma, Hannes

AU - Vuoriluoto, Maija

AU - Johansson, Leena Sisko

AU - Campbell, Joseph M.

AU - Filpponen, Erkko

AU - Biesalski, Markus

AU - Rojas , Orlando J.

PY - 2016

Y1 - 2016

N2 - A method for preparing photo-crosslinkable cellulose nanofibrils (CNF) was investigated. Benzophenone (BP), a UV-radical crosslinker, was chemically grafted to TEMPO-oxidized wood fibers in water/DMSO medium. This resulted in a reduction of carboxyl group content together with an increase of the number density of amide linkages. The BP-functionalized fibres were then microfluidized into TEMPO-oxidized CNF (TOCNF). As evidence of the crosslinking performance, the films of BP-activated TOCNF displayed improved water resistance upon UV curing (even under high energy sonication). In addition to improving wet strength the method is suitable for further modification of CNF, either by utilizing the remaining free carboxyl groups or via photochemical grafting of other substances onto the CNF structure.

AB - A method for preparing photo-crosslinkable cellulose nanofibrils (CNF) was investigated. Benzophenone (BP), a UV-radical crosslinker, was chemically grafted to TEMPO-oxidized wood fibers in water/DMSO medium. This resulted in a reduction of carboxyl group content together with an increase of the number density of amide linkages. The BP-functionalized fibres were then microfluidized into TEMPO-oxidized CNF (TOCNF). As evidence of the crosslinking performance, the films of BP-activated TOCNF displayed improved water resistance upon UV curing (even under high energy sonication). In addition to improving wet strength the method is suitable for further modification of CNF, either by utilizing the remaining free carboxyl groups or via photochemical grafting of other substances onto the CNF structure.

UR - http://www.scopus.com/inward/record.url?scp=84987623985&partnerID=8YFLogxK

U2 - 10.1039/c6ra15015b

DO - 10.1039/c6ra15015b

M3 - Article

AN - SCOPUS:84987623985

VL - 6

SP - 85100

EP - 85106

JO - RSC Advances

JF - RSC Advances

SN - 2046-2069

IS - 88

ER -

ID: 8346051