Tg in polymer/oligomer athermal blends

Wei Zheng; Sindee L. Simon

T_g in polymer/oligomer athermal blends

Chemical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The glass transition behavior of poly(α-methyl styrene), its tridecamer, and an athermal blend with its hexamer is investigated using differential scanning calorimetry. The glass transition, T_g, of the blend is found to become broader than that of the pure materials. However, the absolute heat capacity of the blend remains unchanged. The length scale of the cooperatively rearranging regions of the samples, as well as previously studied pentamer, polymer, and blends, is estimated from Donth's fluctuation model. The broadening of T_g is found to accompany a decrease of the length scale. In addition, the correlation between T_g, fragility, and the length scale of CRR is also examined.

Original language	English
Title of host publication	Society of Plastics Engineers Annual Technical Conference
Subtitle of host publication	Plastics Encounter at ANTEC 2007, Conference Proceedings
Pages	1788-1792
Number of pages	5
State	Published - 2007
Event	Society of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007 - Cincinnati, OH, United States Duration: May 6 2007 → May 11 2007

Publication series

Name	Annual Technical Conference - ANTEC, Conference Proceedings
Volume	3

Conference

Conference	Society of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007
Country	United States
City	Cincinnati, OH
Period	05/6/07 → 05/11/07

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title = "Tg in polymer/oligomer athermal blends",

abstract = "The glass transition behavior of poly(α-methyl styrene), its tridecamer, and an athermal blend with its hexamer is investigated using differential scanning calorimetry. The glass transition, Tg, of the blend is found to become broader than that of the pure materials. However, the absolute heat capacity of the blend remains unchanged. The length scale of the cooperatively rearranging regions of the samples, as well as previously studied pentamer, polymer, and blends, is estimated from Donth's fluctuation model. The broadening of Tg is found to accompany a decrease of the length scale. In addition, the correlation between Tg, fragility, and the length scale of CRR is also examined.",

author = "Wei Zheng and Simon, {Sindee L.}",

year = "2007",

language = "English",

isbn = "1604232145",

series = "Annual Technical Conference - ANTEC, Conference Proceedings",

pages = "1788--1792",

booktitle = "Society of Plastics Engineers Annual Technical Conference",

note = "null ; Conference date: 06-05-2007 Through 11-05-2007",

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Zheng, W & Simon, SL 2007, T_g in polymer/oligomer athermal blends. in Society of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007, Conference Proceedings. Annual Technical Conference - ANTEC, Conference Proceedings, vol. 3, pp. 1788-1792, Society of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007, Cincinnati, OH, United States, 05/6/07.

T_g in polymer/oligomer athermal blends. / Zheng, Wei; Simon, Sindee L.

Society of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007, Conference Proceedings. 2007. p. 1788-1792 (Annual Technical Conference - ANTEC, Conference Proceedings; Vol. 3).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

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AU - Zheng, Wei

AU - Simon, Sindee L.

PY - 2007

Y1 - 2007

N2 - The glass transition behavior of poly(α-methyl styrene), its tridecamer, and an athermal blend with its hexamer is investigated using differential scanning calorimetry. The glass transition, Tg, of the blend is found to become broader than that of the pure materials. However, the absolute heat capacity of the blend remains unchanged. The length scale of the cooperatively rearranging regions of the samples, as well as previously studied pentamer, polymer, and blends, is estimated from Donth's fluctuation model. The broadening of Tg is found to accompany a decrease of the length scale. In addition, the correlation between Tg, fragility, and the length scale of CRR is also examined.

AB - The glass transition behavior of poly(α-methyl styrene), its tridecamer, and an athermal blend with its hexamer is investigated using differential scanning calorimetry. The glass transition, Tg, of the blend is found to become broader than that of the pure materials. However, the absolute heat capacity of the blend remains unchanged. The length scale of the cooperatively rearranging regions of the samples, as well as previously studied pentamer, polymer, and blends, is estimated from Donth's fluctuation model. The broadening of Tg is found to accompany a decrease of the length scale. In addition, the correlation between Tg, fragility, and the length scale of CRR is also examined.

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M3 - Conference contribution

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SN - 1604232145

SN - 9781604232141

T3 - Annual Technical Conference - ANTEC, Conference Proceedings

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EP - 1792

BT - Society of Plastics Engineers Annual Technical Conference

Y2 - 6 May 2007 through 11 May 2007