Substitution of corn starch with polycaprolactone via chlorination and water resistance of the substituted starch

Dong Keon Kweon, Seung Taik Lim

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Corn starch was chlorinated using methanesulfonyl chloride in dimethylformamide (DMF) and then substituted with polycaprolactone (PCL) in various solvents [dimethylsulfoxide (DMSO), water and dimethylacetamide (DMAc)] containing a catalyst [sodium hydroxide (NaOH) or lithium chloride (LiCl)] to improve water resistance. The reaction yield based on the product weight was highest (85%) when DMAc and LiCl were used. Fourier transform infrared (FTIR) spectra showed that starch was monosubstituted with PCL in the aqueous NaOH solution, whereas it was to crosslink by PCL in the case using DMAc and LICl. The intrinsic viscosity of the products in DMSO supports these trends. By introducing the hydrophobic PCL onto starch, solvent resistance of the substituted starches to water and other aqueous media increased. The crosslinked starch displayed higher water resistance than the monosubstituted starch.

Original languageEnglish
Pages (from-to)2197-2202
Number of pages6
JournalJournal of Applied Polymer Science
Volume81
Issue number9
DOIs
Publication statusPublished - 2001 Aug 29

Fingerprint

Polycaprolactone
Chlorination
Starch
Substitution reactions
Water
Lithium Chloride
Dimethyl Sulfoxide
Lithium
Dimethylformamide
Sodium Hydroxide
Fourier transforms
polycaprolactone
Viscosity
Infrared radiation
Sodium
Catalysts
dimethylacetamide

Keywords

  • Chlorinated starch
  • Crosslinked starch with PCL
  • Monosubstituted starch with PCL

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

Substitution of corn starch with polycaprolactone via chlorination and water resistance of the substituted starch. / Kweon, Dong Keon; Lim, Seung Taik.

In: Journal of Applied Polymer Science, Vol. 81, No. 9, 29.08.2001, p. 2197-2202.

Research output: Contribution to journalArticle

@article{cdd0de2cd35d486097e037ea0bbec24f,
title = "Substitution of corn starch with polycaprolactone via chlorination and water resistance of the substituted starch",
abstract = "Corn starch was chlorinated using methanesulfonyl chloride in dimethylformamide (DMF) and then substituted with polycaprolactone (PCL) in various solvents [dimethylsulfoxide (DMSO), water and dimethylacetamide (DMAc)] containing a catalyst [sodium hydroxide (NaOH) or lithium chloride (LiCl)] to improve water resistance. The reaction yield based on the product weight was highest (85{\%}) when DMAc and LiCl were used. Fourier transform infrared (FTIR) spectra showed that starch was monosubstituted with PCL in the aqueous NaOH solution, whereas it was to crosslink by PCL in the case using DMAc and LICl. The intrinsic viscosity of the products in DMSO supports these trends. By introducing the hydrophobic PCL onto starch, solvent resistance of the substituted starches to water and other aqueous media increased. The crosslinked starch displayed higher water resistance than the monosubstituted starch.",
keywords = "Chlorinated starch, Crosslinked starch with PCL, Monosubstituted starch with PCL",
author = "Kweon, {Dong Keon} and Lim, {Seung Taik}",
year = "2001",
month = "8",
day = "29",
doi = "10.1002/app.1656",
language = "English",
volume = "81",
pages = "2197--2202",
journal = "Journal of Applied Polymer Science",
issn = "0021-8995",
publisher = "John Wiley and Sons Inc.",
number = "9",

}

TY - JOUR

T1 - Substitution of corn starch with polycaprolactone via chlorination and water resistance of the substituted starch

AU - Kweon, Dong Keon

AU - Lim, Seung Taik

PY - 2001/8/29

Y1 - 2001/8/29

N2 - Corn starch was chlorinated using methanesulfonyl chloride in dimethylformamide (DMF) and then substituted with polycaprolactone (PCL) in various solvents [dimethylsulfoxide (DMSO), water and dimethylacetamide (DMAc)] containing a catalyst [sodium hydroxide (NaOH) or lithium chloride (LiCl)] to improve water resistance. The reaction yield based on the product weight was highest (85%) when DMAc and LiCl were used. Fourier transform infrared (FTIR) spectra showed that starch was monosubstituted with PCL in the aqueous NaOH solution, whereas it was to crosslink by PCL in the case using DMAc and LICl. The intrinsic viscosity of the products in DMSO supports these trends. By introducing the hydrophobic PCL onto starch, solvent resistance of the substituted starches to water and other aqueous media increased. The crosslinked starch displayed higher water resistance than the monosubstituted starch.

AB - Corn starch was chlorinated using methanesulfonyl chloride in dimethylformamide (DMF) and then substituted with polycaprolactone (PCL) in various solvents [dimethylsulfoxide (DMSO), water and dimethylacetamide (DMAc)] containing a catalyst [sodium hydroxide (NaOH) or lithium chloride (LiCl)] to improve water resistance. The reaction yield based on the product weight was highest (85%) when DMAc and LiCl were used. Fourier transform infrared (FTIR) spectra showed that starch was monosubstituted with PCL in the aqueous NaOH solution, whereas it was to crosslink by PCL in the case using DMAc and LICl. The intrinsic viscosity of the products in DMSO supports these trends. By introducing the hydrophobic PCL onto starch, solvent resistance of the substituted starches to water and other aqueous media increased. The crosslinked starch displayed higher water resistance than the monosubstituted starch.

KW - Chlorinated starch

KW - Crosslinked starch with PCL

KW - Monosubstituted starch with PCL

UR - http://www.scopus.com/inward/record.url?scp=0035968461&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035968461&partnerID=8YFLogxK

U2 - 10.1002/app.1656

DO - 10.1002/app.1656

M3 - Article

VL - 81

SP - 2197

EP - 2202

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

SN - 0021-8995

IS - 9

ER -