SAXS/DSC analysis of the lamellar thickness distribution on a SSA thermally fractionated model polyethylene

Arnaldo T. Lorenzo; María L. Arnal; Alejandro J. Müller; Ming Champ Lin; Hsin Lung Chen

doi:10.1002/macp.201100240

SAXS/DSC analysis of the lamellar thickness distribution on a SSA thermally fractionated model polyethylene

Arnaldo T. Lorenzo, María L. Arnal, Alejandro J. Müller^*, Ming Champ Lin, Hsin Lung Chen

^*Corresponding author for this work

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

79 Scopus citations

Abstract

Successive self-nucleation and annealing (SSA) is applied to thermally fractionate a model hydrogenated polybutadiene. SSA produces discrete and well-separated thermal fractions with distinct melting peaks. The samples are studied by SAXS as a function of temperature. The SAXS profile displays only one scattering peak associated with the interlamellar correlation and is unable to discriminate the multimodal distribution of lamellar thicknesses in the samples. The average lamellar thickness associated with each melting fraction can be estimated from SAXS data at different temperatures. A modified Gibbs-Thomson equation is employed to predict the lamellar thickness from DSC data, giving results consistent with those derived from SAXS.

Original language	English
Pages (from-to)	2009-2016
Number of pages	8
Journal	Macromolecular Chemistry and Physics
Volume	212
Issue number	18
DOIs	https://doi.org/10.1002/macp.201100240
State	Published - 15 09 2011
Externally published	Yes

Keywords

SSA thermal fractionation
ethylene/α-olefin copolymers
hydrogenated polybutadiene
lamellar thickness distributions

Access to Document

10.1002/macp.201100240

Cite this

@article{71aa9d2b100f4113ba9fb807558b8a58,

title = "SAXS/DSC analysis of the lamellar thickness distribution on a SSA thermally fractionated model polyethylene",

abstract = "Successive self-nucleation and annealing (SSA) is applied to thermally fractionate a model hydrogenated polybutadiene. SSA produces discrete and well-separated thermal fractions with distinct melting peaks. The samples are studied by SAXS as a function of temperature. The SAXS profile displays only one scattering peak associated with the interlamellar correlation and is unable to discriminate the multimodal distribution of lamellar thicknesses in the samples. The average lamellar thickness associated with each melting fraction can be estimated from SAXS data at different temperatures. A modified Gibbs-Thomson equation is employed to predict the lamellar thickness from DSC data, giving results consistent with those derived from SAXS.",

keywords = "SSA thermal fractionation, ethylene/α-olefin copolymers, hydrogenated polybutadiene, lamellar thickness distributions",

author = "Lorenzo, {Arnaldo T.} and Arnal, {Mar{\'i}a L.} and M{\"u}ller, {Alejandro J.} and Lin, {Ming Champ} and Chen, {Hsin Lung}",

year = "2011",

month = sep,

day = "15",

doi = "10.1002/macp.201100240",

language = "英语",

volume = "212",

pages = "2009--2016",

journal = "Macromolecular Chemistry and Physics",

issn = "1022-1352",

publisher = "Wiley-VCH Verlag",

number = "18",

}

TY - JOUR

T1 - SAXS/DSC analysis of the lamellar thickness distribution on a SSA thermally fractionated model polyethylene

AU - Lorenzo, Arnaldo T.

AU - Arnal, María L.

AU - Müller, Alejandro J.

AU - Lin, Ming Champ

AU - Chen, Hsin Lung

PY - 2011/9/15

Y1 - 2011/9/15

N2 - Successive self-nucleation and annealing (SSA) is applied to thermally fractionate a model hydrogenated polybutadiene. SSA produces discrete and well-separated thermal fractions with distinct melting peaks. The samples are studied by SAXS as a function of temperature. The SAXS profile displays only one scattering peak associated with the interlamellar correlation and is unable to discriminate the multimodal distribution of lamellar thicknesses in the samples. The average lamellar thickness associated with each melting fraction can be estimated from SAXS data at different temperatures. A modified Gibbs-Thomson equation is employed to predict the lamellar thickness from DSC data, giving results consistent with those derived from SAXS.

AB - Successive self-nucleation and annealing (SSA) is applied to thermally fractionate a model hydrogenated polybutadiene. SSA produces discrete and well-separated thermal fractions with distinct melting peaks. The samples are studied by SAXS as a function of temperature. The SAXS profile displays only one scattering peak associated with the interlamellar correlation and is unable to discriminate the multimodal distribution of lamellar thicknesses in the samples. The average lamellar thickness associated with each melting fraction can be estimated from SAXS data at different temperatures. A modified Gibbs-Thomson equation is employed to predict the lamellar thickness from DSC data, giving results consistent with those derived from SAXS.

KW - SSA thermal fractionation

KW - ethylene/α-olefin copolymers

KW - hydrogenated polybutadiene

KW - lamellar thickness distributions

UR - http://www.scopus.com/inward/record.url?scp=80052561637&partnerID=8YFLogxK

U2 - 10.1002/macp.201100240

DO - 10.1002/macp.201100240

M3 - 文章

AN - SCOPUS:80052561637

SN - 1022-1352

VL - 212

SP - 2009

EP - 2016

JO - Macromolecular Chemistry and Physics

JF - Macromolecular Chemistry and Physics

IS - 18

ER -

SAXS/DSC analysis of the lamellar thickness distribution on a SSA thermally fractionated model polyethylene

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this