Heterogeneity of laser-irradiated films of polyvinyl alcohol/starch blends: Effect of glycerol content

P. A. Sreekumar; Mamdouh A. Al-Harthi; M. A. Gondal; S. K. De

doi:10.1002/sia.5211

Heterogeneity of laser-irradiated films of polyvinyl alcohol/starch blends: Effect of glycerol content

P. A. Sreekumar^*
, Mamdouh A. Al-Harthi
, M. A. Gondal
, S. K. De

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The present paper reports the results of studies on the effect of laser irradiation on the morphology and thermal properties of starch/polyvinyl alcohol (PVA) blend, with varying glycerol concentration. Differential scanning calorimeter results showed that laser irradiation increased the heat of fusion (ΔH_fus), heat of crystallization (ΔH_cry), temperature of melting (T_m), temperature of crystallization (T _cry) and percentage crystallinity as a function of the amount of glycerol. It is believed that breakdown of the intermolecular hydrogen bonding between the starch and PVA causes an increase in the blend heterogeneity. These results are corroborated with the findings from thermogravimetric analysis and scanning electron microscope images.

Original language	English
Pages (from-to)	1047-1051
Number of pages	5
Journal	Surface and Interface Analysis
Volume	45
Issue number	6
DOIs	https://doi.org/10.1002/sia.5211
State	Published - Jun 2013

Keywords

blend
laser
polyvinyl alcohol
starch
thermal properties

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1002/sia.5211

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title = "Heterogeneity of laser-irradiated films of polyvinyl alcohol/starch blends: Effect of glycerol content",

abstract = "The present paper reports the results of studies on the effect of laser irradiation on the morphology and thermal properties of starch/polyvinyl alcohol (PVA) blend, with varying glycerol concentration. Differential scanning calorimeter results showed that laser irradiation increased the heat of fusion (ΔHfus), heat of crystallization (ΔHcry), temperature of melting (Tm), temperature of crystallization (T cry) and percentage crystallinity as a function of the amount of glycerol. It is believed that breakdown of the intermolecular hydrogen bonding between the starch and PVA causes an increase in the blend heterogeneity. These results are corroborated with the findings from thermogravimetric analysis and scanning electron microscope images.",

keywords = "blend, laser, polyvinyl alcohol, starch, thermal properties",

author = "Sreekumar, \{P. A.\} and Al-Harthi, \{Mamdouh A.\} and Gondal, \{M. A.\} and De, \{S. K.\}",

year = "2013",

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pages = "1047--1051",

journal = "Surface and Interface Analysis",

issn = "0142-2421",

publisher = "John Wiley and Sons Ltd",

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TY - JOUR

T1 - Heterogeneity of laser-irradiated films of polyvinyl alcohol/starch blends

T2 - Effect of glycerol content

AU - Sreekumar, P. A.

AU - Al-Harthi, Mamdouh A.

AU - Gondal, M. A.

AU - De, S. K.

PY - 2013/6

Y1 - 2013/6

N2 - The present paper reports the results of studies on the effect of laser irradiation on the morphology and thermal properties of starch/polyvinyl alcohol (PVA) blend, with varying glycerol concentration. Differential scanning calorimeter results showed that laser irradiation increased the heat of fusion (ΔHfus), heat of crystallization (ΔHcry), temperature of melting (Tm), temperature of crystallization (T cry) and percentage crystallinity as a function of the amount of glycerol. It is believed that breakdown of the intermolecular hydrogen bonding between the starch and PVA causes an increase in the blend heterogeneity. These results are corroborated with the findings from thermogravimetric analysis and scanning electron microscope images.

AB - The present paper reports the results of studies on the effect of laser irradiation on the morphology and thermal properties of starch/polyvinyl alcohol (PVA) blend, with varying glycerol concentration. Differential scanning calorimeter results showed that laser irradiation increased the heat of fusion (ΔHfus), heat of crystallization (ΔHcry), temperature of melting (Tm), temperature of crystallization (T cry) and percentage crystallinity as a function of the amount of glycerol. It is believed that breakdown of the intermolecular hydrogen bonding between the starch and PVA causes an increase in the blend heterogeneity. These results are corroborated with the findings from thermogravimetric analysis and scanning electron microscope images.

KW - blend

KW - laser

KW - polyvinyl alcohol

KW - starch

KW - thermal properties

UR - https://www.scopus.com/pages/publications/84877069562

U2 - 10.1002/sia.5211

DO - 10.1002/sia.5211

M3 - Article

AN - SCOPUS:84877069562

SN - 0142-2421

VL - 45

SP - 1047

EP - 1051

JO - Surface and Interface Analysis

JF - Surface and Interface Analysis

IS - 6

ER -

Heterogeneity of laser-irradiated films of polyvinyl alcohol/starch blends: Effect of glycerol content

Abstract

Keywords

ASJC Scopus subject areas

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