Modification of cellulose acetate with Oligomeric polycaprolactone by reactive processing

Efficiency, compatibility, and properties

Szilvia Klébert, Lajos Nagy, Attila Domjan, B. Pukánszky

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Oligomeric polycaprolactone (oPCL) was used for the modification of cellulose acetate by reactive processing in an internal mixer at 180°C, 50 rpm, 60 min reaction time, and 45 wt % caprolactone (CL) content. The product of the reaction was characterized by several analytical techniques and its mechanical properties were determined by dynamic mechanical thermal analysis and tensile testing. The synthesized oPCL contained small and large molecular weight components. The small molecular weight fraction plasticized cellulose acetate externally and helped fusion. Although composition and structure did not differ considerably from each other when CL monomer or polycaprolactone oligomer was used for modification, the grafting of a few long chains had considerable effect on some properties of the product. The large molecular weight chains attached to CA increased the viscosity of the melt considerably and resulted in larger deformability. oPCL homopolymer is not miscible with cellulose acetate and migrates to the surface of the polymer. Exuded polycaprolactone oligomers crystallize on the surface but can be removed very easily. More intense conditions may favor the grafting of long chains leading to polymers with advantageous properties.

Original languageEnglish
Pages (from-to)3255-3263
Number of pages9
JournalJournal of Applied Polymer Science
Volume113
Issue number5
DOIs
Publication statusPublished - Sep 5 2009

Fingerprint

Polycaprolactone
Cellulose
Processing
Molecular weight
Oligomers
Polymers
Tensile testing
Formability
Homopolymerization
Thermoanalysis
Fusion reactions
Monomers
polycaprolactone
acetylcellulose
Viscosity
Mechanical properties
Chemical analysis

Keywords

  • Cellulose acetate
  • Grafting
  • Mechanical properties
  • Miscibility
  • Molecular structure
  • Oligomeric caprolactone

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Surfaces, Coatings and Films
  • Chemistry(all)

Cite this

Modification of cellulose acetate with Oligomeric polycaprolactone by reactive processing : Efficiency, compatibility, and properties. / Klébert, Szilvia; Nagy, Lajos; Domjan, Attila; Pukánszky, B.

In: Journal of Applied Polymer Science, Vol. 113, No. 5, 05.09.2009, p. 3255-3263.

Research output: Contribution to journalArticle

@article{79ccf40491fe46c88159ab8da5229565,
title = "Modification of cellulose acetate with Oligomeric polycaprolactone by reactive processing: Efficiency, compatibility, and properties",
abstract = "Oligomeric polycaprolactone (oPCL) was used for the modification of cellulose acetate by reactive processing in an internal mixer at 180°C, 50 rpm, 60 min reaction time, and 45 wt {\%} caprolactone (CL) content. The product of the reaction was characterized by several analytical techniques and its mechanical properties were determined by dynamic mechanical thermal analysis and tensile testing. The synthesized oPCL contained small and large molecular weight components. The small molecular weight fraction plasticized cellulose acetate externally and helped fusion. Although composition and structure did not differ considerably from each other when CL monomer or polycaprolactone oligomer was used for modification, the grafting of a few long chains had considerable effect on some properties of the product. The large molecular weight chains attached to CA increased the viscosity of the melt considerably and resulted in larger deformability. oPCL homopolymer is not miscible with cellulose acetate and migrates to the surface of the polymer. Exuded polycaprolactone oligomers crystallize on the surface but can be removed very easily. More intense conditions may favor the grafting of long chains leading to polymers with advantageous properties.",
keywords = "Cellulose acetate, Grafting, Mechanical properties, Miscibility, Molecular structure, Oligomeric caprolactone",
author = "Szilvia Kl{\'e}bert and Lajos Nagy and Attila Domjan and B. Puk{\'a}nszky",
year = "2009",
month = "9",
day = "5",
doi = "10.1002/app.30187",
language = "English",
volume = "113",
pages = "3255--3263",
journal = "Journal of Applied Polymer Science",
issn = "0021-8995",
publisher = "John Wiley and Sons Inc.",
number = "5",

}

TY - JOUR

T1 - Modification of cellulose acetate with Oligomeric polycaprolactone by reactive processing

T2 - Efficiency, compatibility, and properties

AU - Klébert, Szilvia

AU - Nagy, Lajos

AU - Domjan, Attila

AU - Pukánszky, B.

PY - 2009/9/5

Y1 - 2009/9/5

N2 - Oligomeric polycaprolactone (oPCL) was used for the modification of cellulose acetate by reactive processing in an internal mixer at 180°C, 50 rpm, 60 min reaction time, and 45 wt % caprolactone (CL) content. The product of the reaction was characterized by several analytical techniques and its mechanical properties were determined by dynamic mechanical thermal analysis and tensile testing. The synthesized oPCL contained small and large molecular weight components. The small molecular weight fraction plasticized cellulose acetate externally and helped fusion. Although composition and structure did not differ considerably from each other when CL monomer or polycaprolactone oligomer was used for modification, the grafting of a few long chains had considerable effect on some properties of the product. The large molecular weight chains attached to CA increased the viscosity of the melt considerably and resulted in larger deformability. oPCL homopolymer is not miscible with cellulose acetate and migrates to the surface of the polymer. Exuded polycaprolactone oligomers crystallize on the surface but can be removed very easily. More intense conditions may favor the grafting of long chains leading to polymers with advantageous properties.

AB - Oligomeric polycaprolactone (oPCL) was used for the modification of cellulose acetate by reactive processing in an internal mixer at 180°C, 50 rpm, 60 min reaction time, and 45 wt % caprolactone (CL) content. The product of the reaction was characterized by several analytical techniques and its mechanical properties were determined by dynamic mechanical thermal analysis and tensile testing. The synthesized oPCL contained small and large molecular weight components. The small molecular weight fraction plasticized cellulose acetate externally and helped fusion. Although composition and structure did not differ considerably from each other when CL monomer or polycaprolactone oligomer was used for modification, the grafting of a few long chains had considerable effect on some properties of the product. The large molecular weight chains attached to CA increased the viscosity of the melt considerably and resulted in larger deformability. oPCL homopolymer is not miscible with cellulose acetate and migrates to the surface of the polymer. Exuded polycaprolactone oligomers crystallize on the surface but can be removed very easily. More intense conditions may favor the grafting of long chains leading to polymers with advantageous properties.

KW - Cellulose acetate

KW - Grafting

KW - Mechanical properties

KW - Miscibility

KW - Molecular structure

KW - Oligomeric caprolactone

UR - http://www.scopus.com/inward/record.url?scp=67649969212&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67649969212&partnerID=8YFLogxK

U2 - 10.1002/app.30187

DO - 10.1002/app.30187

M3 - Article

VL - 113

SP - 3255

EP - 3263

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

SN - 0021-8995

IS - 5

ER -