Grafting of nanofibrillated cellulose by free radical polymerization

Kuisma Littunen; Ulla Hippi; Leena-Sisko Johansson; Monika Österberg; Tekla Tammelin; Janne Laine; Jukka Seppälä

Grafting of nanofibrillated cellulose by free radical polymerization

Kuisma Littunen, Ulla Hippi, Leena-Sisko Johansson, Monika Österberg, Tekla Tammelin, Janne Laine, Jukka Seppälä

Research output: Contribution to conference › Conference Abstract › Scientific › peer-review

Abstract

Grafting of polymer chains from nanofibrillated cellulose surface has been performed in aqueous suspension by a redox initiated free radical polymerization. Several acrylic monomers have been used, their polymerization behavior studied and structure of the products verified. The method was found very efficient and selective: graft copolymerization was dominant over homopolymerization, and up to 80% of polymer in the product was gained. Their structures were very different. Poly(butyl acrylate) (PBuA) formed very long chains, which were situated on the nanofibril surface fairly far apart. Poly(glycidyl methacrylate) (PGMA), on the other hand, showed a very dense coating on nanofibrils and the chains were relatively short. Thus the structures of the materials varied from coated cellulose nanofibrils to a continuous polymer matrix where the nanofibrils were embedded.

Original language	English
Publication status	Published - 27 Mar 2011
MoE publication type	Not Eligible
Event	241st American Chemical Society National Meeting & Exposition - Anaheim, United States Duration: 27 Mar 2011 → 31 Mar 2011

Conference

Conference	241st American Chemical Society National Meeting & Exposition
Abbreviated title	241st ACS National Meeting
Country/Territory	United States
City	Anaheim
Period	27/03/11 → 31/03/11

Cite this

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title = "Grafting of nanofibrillated cellulose by free radical polymerization",

abstract = "Grafting of polymer chains from nanofibrillated cellulose surface has been performed in aqueous suspension by a redox initiated free radical polymerization. Several acrylic monomers have been used, their polymerization behavior studied and structure of the products verified. The method was found very efficient and selective: graft copolymerization was dominant over homopolymerization, and up to 80% of polymer in the product was gained. Their structures were very different. Poly(butyl acrylate) (PBuA) formed very long chains, which were situated on the nanofibril surface fairly far apart. Poly(glycidyl methacrylate) (PGMA), on the other hand, showed a very dense coating on nanofibrils and the chains were relatively short. Thus the structures of the materials varied from coated cellulose nanofibrils to a continuous polymer matrix where the nanofibrils were embedded.",

author = "Kuisma Littunen and Ulla Hippi and Leena-Sisko Johansson and Monika {\"O}sterberg and Tekla Tammelin and Janne Laine and Jukka Sepp{\"a}l{\"a}",

year = "2011",

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day = "27",

language = "English",

note = "241st American Chemical Society National Meeting & Exposition, 241st ACS National Meeting ; Conference date: 27-03-2011 Through 31-03-2011",

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TY - CONF

T1 - Grafting of nanofibrillated cellulose by free radical polymerization

AU - Littunen, Kuisma

AU - Hippi, Ulla

AU - Johansson, Leena-Sisko

AU - Österberg, Monika

AU - Tammelin, Tekla

AU - Laine, Janne

AU - Seppälä, Jukka

PY - 2011/3/27

Y1 - 2011/3/27

N2 - Grafting of polymer chains from nanofibrillated cellulose surface has been performed in aqueous suspension by a redox initiated free radical polymerization. Several acrylic monomers have been used, their polymerization behavior studied and structure of the products verified. The method was found very efficient and selective: graft copolymerization was dominant over homopolymerization, and up to 80% of polymer in the product was gained. Their structures were very different. Poly(butyl acrylate) (PBuA) formed very long chains, which were situated on the nanofibril surface fairly far apart. Poly(glycidyl methacrylate) (PGMA), on the other hand, showed a very dense coating on nanofibrils and the chains were relatively short. Thus the structures of the materials varied from coated cellulose nanofibrils to a continuous polymer matrix where the nanofibrils were embedded.

AB - Grafting of polymer chains from nanofibrillated cellulose surface has been performed in aqueous suspension by a redox initiated free radical polymerization. Several acrylic monomers have been used, their polymerization behavior studied and structure of the products verified. The method was found very efficient and selective: graft copolymerization was dominant over homopolymerization, and up to 80% of polymer in the product was gained. Their structures were very different. Poly(butyl acrylate) (PBuA) formed very long chains, which were situated on the nanofibril surface fairly far apart. Poly(glycidyl methacrylate) (PGMA), on the other hand, showed a very dense coating on nanofibrils and the chains were relatively short. Thus the structures of the materials varied from coated cellulose nanofibrils to a continuous polymer matrix where the nanofibrils were embedded.

M3 - Conference Abstract

T2 - 241st American Chemical Society National Meeting & Exposition

Y2 - 27 March 2011 through 31 March 2011

ER -

Grafting of nanofibrillated cellulose by free radical polymerization

Abstract

Conference

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