Small-Angle Neutron Scattering Evaluation of the Temperature Dependence of Atactic Polypropylene and Poly(1-butene) Chain Dimensions in the Melt

A. Zirkel; V. Urban; D. Richter; L. J. Fetters; J. S. Huang; R. Kampmann; N. Hadjichristidis

doi:10.1021/ma00049a010

Small-Angle Neutron Scattering Evaluation of the Temperature Dependence of Atactic Polypropylene and Poly(1-butene) Chain Dimensions in the Melt

A. Zirkel, V. Urban, D. Richter, L. J. Fetters^*, J. S. Huang, R. Kampmann, N. Hadjichristidis

^*Corresponding author for this work

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

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Abstract

Small-angle neutron scattering was used to measure the influence of temperature on the radius of gyration in the melt of atactic polypropylene and poly(l-butene). The chain dimension temperature coefficient, d In (R²)_o/dT, was found to be respectively −0.1 × 10⁻³ and 0.4 × 10⁻³ deg⁻¹. These values, with one exception, disagree with the rotational isomeric state predictions as well as with those values obtained via intrinsic viscosity measurements either at θ conditions or in perceived athermal solvents. Conversely, excellent agreement was obtained with the values available from both thermoelastic and rheological measurements on atactic poly(1-butene).

Original language	English (US)
Pages (from-to)	6148-6155
Number of pages	8
Journal	Macromolecules
Volume	25
Issue number	23
DOIs	https://doi.org/10.1021/ma00049a010
State	Published - Nov 1 1992
Externally published	Yes

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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@article{e1f37f9ec651460b8fba0fc1193e1acb,

title = "Small-Angle Neutron Scattering Evaluation of the Temperature Dependence of Atactic Polypropylene and Poly(1-butene) Chain Dimensions in the Melt",

abstract = "Small-angle neutron scattering was used to measure the influence of temperature on the radius of gyration in the melt of atactic polypropylene and poly(l-butene). The chain dimension temperature coefficient, d In (R2)o/dT, was found to be respectively −0.1 × 10−3 and 0.4 × 10−3 deg−1. These values, with one exception, disagree with the rotational isomeric state predictions as well as with those values obtained via intrinsic viscosity measurements either at θ conditions or in perceived athermal solvents. Conversely, excellent agreement was obtained with the values available from both thermoelastic and rheological measurements on atactic poly(1-butene).",

author = "A. Zirkel and V. Urban and D. Richter and Fetters, {L. J.} and Huang, {J. S.} and R. Kampmann and N. Hadjichristidis",

year = "1992",

month = nov,

day = "1",

doi = "10.1021/ma00049a010",

language = "English (US)",

volume = "25",

pages = "6148--6155",

journal = "Macromolecules",

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publisher = "American Chemical Society",

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TY - JOUR

T1 - Small-Angle Neutron Scattering Evaluation of the Temperature Dependence of Atactic Polypropylene and Poly(1-butene) Chain Dimensions in the Melt

AU - Zirkel, A.

AU - Urban, V.

AU - Richter, D.

AU - Fetters, L. J.

AU - Huang, J. S.

AU - Kampmann, R.

AU - Hadjichristidis, N.

PY - 1992/11/1

Y1 - 1992/11/1

N2 - Small-angle neutron scattering was used to measure the influence of temperature on the radius of gyration in the melt of atactic polypropylene and poly(l-butene). The chain dimension temperature coefficient, d In (R2)o/dT, was found to be respectively −0.1 × 10−3 and 0.4 × 10−3 deg−1. These values, with one exception, disagree with the rotational isomeric state predictions as well as with those values obtained via intrinsic viscosity measurements either at θ conditions or in perceived athermal solvents. Conversely, excellent agreement was obtained with the values available from both thermoelastic and rheological measurements on atactic poly(1-butene).

AB - Small-angle neutron scattering was used to measure the influence of temperature on the radius of gyration in the melt of atactic polypropylene and poly(l-butene). The chain dimension temperature coefficient, d In (R2)o/dT, was found to be respectively −0.1 × 10−3 and 0.4 × 10−3 deg−1. These values, with one exception, disagree with the rotational isomeric state predictions as well as with those values obtained via intrinsic viscosity measurements either at θ conditions or in perceived athermal solvents. Conversely, excellent agreement was obtained with the values available from both thermoelastic and rheological measurements on atactic poly(1-butene).

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U2 - 10.1021/ma00049a010

DO - 10.1021/ma00049a010

M3 - Article

AN - SCOPUS:0027116089

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VL - 25

SP - 6148

EP - 6155

JO - Macromolecules

JF - Macromolecules

IS - 23

ER -

Small-Angle Neutron Scattering Evaluation of the Temperature Dependence of Atactic Polypropylene and Poly(1-butene) Chain Dimensions in the Melt

Abstract

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