Poly(ε-caprolactone)-grafted acetylated anhydroglucose oligomer by ring-opening polymerization: Synthesis and characterization

Thomas Gädda, Janne Kylmä, Jukka Tuominen, Hannu Mikkonen, Aki Laine, Soili Peltonen, Jukka Seppälä (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Abstract

A novel acetylated anhydroglucose oligomer (AGU‐oligomer), prepared by acid catalyzed transglycosidation of potato starch triacetate and ethylene glycol, was used as a multifunctional coinitiator for the ring‐opening polymerization of ε‐caprolactone (ε-CL). The polymers were synthesized using different weight ratios of the starting materials and were characterized by NMR, SEC, and MALLS. The results confirmed the expected P(AGU/CL) polymer structure, namely a ‘comb‐like’ graft‐copolymer having the AGU oligomer as backbone with PCL grafts of variable chain lengths (LCL = 4–21). Thermal and mechanical properties of graft‐copolymers with different ε‐CL block lengths were examined. By changing the graft length, crystallinity was controlled and amorphous polymers were obtained with AGU‐oligomer contents higher than 50 wt %. The tensile properties varied with the composition and a copolymer having 40 wt % of AGU‐oligomer behaved like soft elastomer, showing high elongation at break.
Original languageEnglish
Pages (from-to)1633-1641
JournalJournal of Applied Polymer Science
Volume100
Issue number2
DOIs
Publication statusPublished - 2006
MoE publication typeA1 Journal article-refereed

Fingerprint

Ring opening polymerization
Oligomers
Polymers
Grafts
Elastomers
Ethylene Glycol
Ethylene glycol
Starch
Chain length
Tensile properties
Elongation
Thermodynamic properties
Copolymers
Polymerization
Nuclear magnetic resonance
Mechanical properties
Acids
polycaprolactone
Chemical analysis

Keywords

  • biopolymers
  • graft copolymers
  • polyesters
  • ring-opening polymerization
  • polysaccharides

Cite this

Gädda, Thomas ; Kylmä, Janne ; Tuominen, Jukka ; Mikkonen, Hannu ; Laine, Aki ; Peltonen, Soili ; Seppälä, Jukka. / Poly(ε-caprolactone)-grafted acetylated anhydroglucose oligomer by ring-opening polymerization : Synthesis and characterization. In: Journal of Applied Polymer Science. 2006 ; Vol. 100, No. 2. pp. 1633-1641.
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abstract = "A novel acetylated anhydroglucose oligomer (AGU‐oligomer), prepared by acid catalyzed transglycosidation of potato starch triacetate and ethylene glycol, was used as a multifunctional coinitiator for the ring‐opening polymerization of ε‐caprolactone (ε-CL). The polymers were synthesized using different weight ratios of the starting materials and were characterized by NMR, SEC, and MALLS. The results confirmed the expected P(AGU/CL) polymer structure, namely a ‘comb‐like’ graft‐copolymer having the AGU oligomer as backbone with PCL grafts of variable chain lengths (LCL = 4–21). Thermal and mechanical properties of graft‐copolymers with different ε‐CL block lengths were examined. By changing the graft length, crystallinity was controlled and amorphous polymers were obtained with AGU‐oligomer contents higher than 50 wt {\%}. The tensile properties varied with the composition and a copolymer having 40 wt {\%} of AGU‐oligomer behaved like soft elastomer, showing high elongation at break.",
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Poly(ε-caprolactone)-grafted acetylated anhydroglucose oligomer by ring-opening polymerization : Synthesis and characterization. / Gädda, Thomas; Kylmä, Janne; Tuominen, Jukka; Mikkonen, Hannu; Laine, Aki; Peltonen, Soili; Seppälä, Jukka (Corresponding Author).

In: Journal of Applied Polymer Science, Vol. 100, No. 2, 2006, p. 1633-1641.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Poly(ε-caprolactone)-grafted acetylated anhydroglucose oligomer by ring-opening polymerization

T2 - Synthesis and characterization

AU - Gädda, Thomas

AU - Kylmä, Janne

AU - Tuominen, Jukka

AU - Mikkonen, Hannu

AU - Laine, Aki

AU - Peltonen, Soili

AU - Seppälä, Jukka

PY - 2006

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N2 - A novel acetylated anhydroglucose oligomer (AGU‐oligomer), prepared by acid catalyzed transglycosidation of potato starch triacetate and ethylene glycol, was used as a multifunctional coinitiator for the ring‐opening polymerization of ε‐caprolactone (ε-CL). The polymers were synthesized using different weight ratios of the starting materials and were characterized by NMR, SEC, and MALLS. The results confirmed the expected P(AGU/CL) polymer structure, namely a ‘comb‐like’ graft‐copolymer having the AGU oligomer as backbone with PCL grafts of variable chain lengths (LCL = 4–21). Thermal and mechanical properties of graft‐copolymers with different ε‐CL block lengths were examined. By changing the graft length, crystallinity was controlled and amorphous polymers were obtained with AGU‐oligomer contents higher than 50 wt %. The tensile properties varied with the composition and a copolymer having 40 wt % of AGU‐oligomer behaved like soft elastomer, showing high elongation at break.

AB - A novel acetylated anhydroglucose oligomer (AGU‐oligomer), prepared by acid catalyzed transglycosidation of potato starch triacetate and ethylene glycol, was used as a multifunctional coinitiator for the ring‐opening polymerization of ε‐caprolactone (ε-CL). The polymers were synthesized using different weight ratios of the starting materials and were characterized by NMR, SEC, and MALLS. The results confirmed the expected P(AGU/CL) polymer structure, namely a ‘comb‐like’ graft‐copolymer having the AGU oligomer as backbone with PCL grafts of variable chain lengths (LCL = 4–21). Thermal and mechanical properties of graft‐copolymers with different ε‐CL block lengths were examined. By changing the graft length, crystallinity was controlled and amorphous polymers were obtained with AGU‐oligomer contents higher than 50 wt %. The tensile properties varied with the composition and a copolymer having 40 wt % of AGU‐oligomer behaved like soft elastomer, showing high elongation at break.

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KW - graft copolymers

KW - polyesters

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KW - polysaccharides

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