Study on molecular interaction behavior, and thermal and mechanical properties of polyacrylic acid and lactose blends

Xiao Dong Fan, You Lo Hsieh, John M. Krochta, Mark J. Kurth

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Polyacrylic acid (PAA) blending with lactose or polyol, a lactose derivative, is investigated by Fourier transform infrared, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and stress-strain tests. The IR spectra of PAA/lactose blends exist shifting around 1700 cm and 3400 cm-1, implying intermolecular hydrogen-bonding interaction between two compounds. DSC data show that PAA and lactose are miscible below 17% lactose. At the higher content of lactose, phase separation occurs due to lactose self-association. Comparing to PAA/lactose blends, PAA/polyol systems show much weaker hydrogen-bonding interaction effect. All blending systems studied exhibit extensive reduction in their thermal and mechanical properties. The result suggests that both lactose and polyol cannot be used as effective additives to enhance the physical properties of PAA.

Original languageEnglish (US)
Pages (from-to)1921-1927
Number of pages7
JournalJournal of Applied Polymer Science
Volume82
Issue number8
DOIs
StatePublished - Nov 21 2001

Fingerprint

carbopol 940
Molecular interactions
Lactose
Thermodynamic properties
Mechanical properties
Acids
Polyols
Differential scanning calorimetry
Hydrogen bonds
Phase separation
Thermogravimetric analysis
Fourier transforms
Physical properties
Association reactions

Keywords

  • Blends
  • Hydrogen-bonding interaction
  • Lactose
  • Polacrylic acid
  • Polyol

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

Study on molecular interaction behavior, and thermal and mechanical properties of polyacrylic acid and lactose blends. / Fan, Xiao Dong; Hsieh, You Lo; Krochta, John M.; Kurth, Mark J.

In: Journal of Applied Polymer Science, Vol. 82, No. 8, 21.11.2001, p. 1921-1927.

Research output: Contribution to journalArticle

Fan, Xiao Dong ; Hsieh, You Lo ; Krochta, John M. ; Kurth, Mark J. / Study on molecular interaction behavior, and thermal and mechanical properties of polyacrylic acid and lactose blends. In: Journal of Applied Polymer Science. 2001 ; Vol. 82, No. 8. pp. 1921-1927.
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