Determination of Percent Crystallinity of Side-Chain Crystallized Alkylated-Dextran Derivatives with Raman Spectroscopy and Multivariate Curve Resolution

Ashok Zachariah Samuel, Mengbo Zhou, Masahiro Ando, Robert Mueller, Tim Liebert, Thomas Heinze, Hiro O. Hamaguchi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We demonstrate a methodology to estimate the percent crystallinity of polymers directly with Raman spectroscopy and multivariate curve resolution (MCR) by alternating least-squares (ALS). In this methodology, the Raman spectrum of semicrystalline polymer is separated into two constituent components (crystalline and molten) and their corresponding concentrations. The percent crystallinity can be estimated as the change in area intensity of the molten spectral-component when polymer cools from a temperature above melting point to room temperature. The number of carbons in the crystalline lattice has also been estimated from the position of longitudinal acoustic (LA) Raman bands with the correlation established by Mizushima and Simanouti [ Mizushima, S.; Simanouti, T. J. Am. Chem. Soc. 1949, 71, 1320 ]. The new method allows direct Raman estimation of absolute percent crystallinity of polymers. Until now, Raman spectroscopic estimation of percent crystallinity was possible only in conjunction with other techniques or by using internal standards.

Original languageEnglish
Pages (from-to)4644-4650
Number of pages7
JournalAnalytical Chemistry
Volume88
Issue number9
DOIs
Publication statusPublished - 2016 May 3

Fingerprint

Dextrans
Raman spectroscopy
Polymers
Molten materials
Crystalline materials
Crystal lattices
Melting point
Raman scattering
Carbon
Acoustics
Temperature

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Determination of Percent Crystallinity of Side-Chain Crystallized Alkylated-Dextran Derivatives with Raman Spectroscopy and Multivariate Curve Resolution. / Samuel, Ashok Zachariah; Zhou, Mengbo; Ando, Masahiro; Mueller, Robert; Liebert, Tim; Heinze, Thomas; Hamaguchi, Hiro O.

In: Analytical Chemistry, Vol. 88, No. 9, 03.05.2016, p. 4644-4650.

Research output: Contribution to journalArticle

@article{aca32df1a95b44fc95ac0790b987ec24,
title = "Determination of Percent Crystallinity of Side-Chain Crystallized Alkylated-Dextran Derivatives with Raman Spectroscopy and Multivariate Curve Resolution",
abstract = "We demonstrate a methodology to estimate the percent crystallinity of polymers directly with Raman spectroscopy and multivariate curve resolution (MCR) by alternating least-squares (ALS). In this methodology, the Raman spectrum of semicrystalline polymer is separated into two constituent components (crystalline and molten) and their corresponding concentrations. The percent crystallinity can be estimated as the change in area intensity of the molten spectral-component when polymer cools from a temperature above melting point to room temperature. The number of carbons in the crystalline lattice has also been estimated from the position of longitudinal acoustic (LA) Raman bands with the correlation established by Mizushima and Simanouti [ Mizushima, S.; Simanouti, T. J. Am. Chem. Soc. 1949, 71, 1320 ]. The new method allows direct Raman estimation of absolute percent crystallinity of polymers. Until now, Raman spectroscopic estimation of percent crystallinity was possible only in conjunction with other techniques or by using internal standards.",
author = "Samuel, {Ashok Zachariah} and Mengbo Zhou and Masahiro Ando and Robert Mueller and Tim Liebert and Thomas Heinze and Hamaguchi, {Hiro O.}",
year = "2016",
month = "5",
day = "3",
doi = "10.1021/acs.analchem.5b04075",
language = "English",
volume = "88",
pages = "4644--4650",
journal = "Analytical Chemistry",
issn = "0003-2700",
publisher = "American Chemical Society",
number = "9",

}

TY - JOUR

T1 - Determination of Percent Crystallinity of Side-Chain Crystallized Alkylated-Dextran Derivatives with Raman Spectroscopy and Multivariate Curve Resolution

AU - Samuel, Ashok Zachariah

AU - Zhou, Mengbo

AU - Ando, Masahiro

AU - Mueller, Robert

AU - Liebert, Tim

AU - Heinze, Thomas

AU - Hamaguchi, Hiro O.

PY - 2016/5/3

Y1 - 2016/5/3

N2 - We demonstrate a methodology to estimate the percent crystallinity of polymers directly with Raman spectroscopy and multivariate curve resolution (MCR) by alternating least-squares (ALS). In this methodology, the Raman spectrum of semicrystalline polymer is separated into two constituent components (crystalline and molten) and their corresponding concentrations. The percent crystallinity can be estimated as the change in area intensity of the molten spectral-component when polymer cools from a temperature above melting point to room temperature. The number of carbons in the crystalline lattice has also been estimated from the position of longitudinal acoustic (LA) Raman bands with the correlation established by Mizushima and Simanouti [ Mizushima, S.; Simanouti, T. J. Am. Chem. Soc. 1949, 71, 1320 ]. The new method allows direct Raman estimation of absolute percent crystallinity of polymers. Until now, Raman spectroscopic estimation of percent crystallinity was possible only in conjunction with other techniques or by using internal standards.

AB - We demonstrate a methodology to estimate the percent crystallinity of polymers directly with Raman spectroscopy and multivariate curve resolution (MCR) by alternating least-squares (ALS). In this methodology, the Raman spectrum of semicrystalline polymer is separated into two constituent components (crystalline and molten) and their corresponding concentrations. The percent crystallinity can be estimated as the change in area intensity of the molten spectral-component when polymer cools from a temperature above melting point to room temperature. The number of carbons in the crystalline lattice has also been estimated from the position of longitudinal acoustic (LA) Raman bands with the correlation established by Mizushima and Simanouti [ Mizushima, S.; Simanouti, T. J. Am. Chem. Soc. 1949, 71, 1320 ]. The new method allows direct Raman estimation of absolute percent crystallinity of polymers. Until now, Raman spectroscopic estimation of percent crystallinity was possible only in conjunction with other techniques or by using internal standards.

UR - http://www.scopus.com/inward/record.url?scp=84968739530&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84968739530&partnerID=8YFLogxK

U2 - 10.1021/acs.analchem.5b04075

DO - 10.1021/acs.analchem.5b04075

M3 - Article

VL - 88

SP - 4644

EP - 4650

JO - Analytical Chemistry

JF - Analytical Chemistry

SN - 0003-2700

IS - 9

ER -