Temperature dependence of unperturbed dimensions for stereoirregular 1,4‐polybutadiene and poly(α‐methylstyrene)

Jimmy W. Mays; Nikos Hadjichristidis; William W. Graessley; Lewis J. Fetters

doi:10.1002/polb.1986.090241112

Temperature dependence of unperturbed dimensions for stereoirregular 1,4‐polybutadiene and poly(α‐methylstyrene)

Jimmy W. Mays^*, Nikos Hadjichristidis, William W. Graessley, Lewis J. Fetters

^*Corresponding author for this work

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

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Abstract

The temperature coefficient of chain dimensions, d ln〈r²〉₀/dT, was determined for stereoirregular 1,4‐polybutadiene and poly(α‐methylstyrene) via dilute solution viscometry. The 1,4‐polybutadiene was examined in oligomeric 1,4‐polybutadiene (an athermal solvent), and poly(α‐methylstyrene) was evaluated under near‐theta conditions using 1‐chloro‐n‐alkanes as solvents. Both approaches minimize the potential for influence by specific solvent effects. The resulting temperature coefficients, −0.1₀ × 10⁻³ deg⁻¹ for 1,4‐polybutadiene and −0.3₀ × 10⁻³ deg⁻¹ for poly(α‐methylstyrene) are in excellent agreement with rotational isomeric state calculations.

Original language	English (US)
Pages (from-to)	2553-2564
Number of pages	12
Journal	Journal of Polymer Science Part B: Polymer Physics
Volume	24
Issue number	11
DOIs	https://doi.org/10.1002/polb.1986.090241112
State	Published - Nov 1986
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Physical and Theoretical Chemistry
Polymers and Plastics
Materials Chemistry

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10.1002/polb.1986.090241112

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title = "Temperature dependence of unperturbed dimensions for stereoirregular 1,4‐polybutadiene and poly(α‐methylstyrene)",

abstract = "The temperature coefficient of chain dimensions, d ln〈r2〉0/dT, was determined for stereoirregular 1,4‐polybutadiene and poly(α‐methylstyrene) via dilute solution viscometry. The 1,4‐polybutadiene was examined in oligomeric 1,4‐polybutadiene (an athermal solvent), and poly(α‐methylstyrene) was evaluated under near‐theta conditions using 1‐chloro‐n‐alkanes as solvents. Both approaches minimize the potential for influence by specific solvent effects. The resulting temperature coefficients, −0.10 × 10−3 deg−1 for 1,4‐polybutadiene and −0.30 × 10−3 deg−1 for poly(α‐methylstyrene) are in excellent agreement with rotational isomeric state calculations.",

author = "Mays, {Jimmy W.} and Nikos Hadjichristidis and Graessley, {William W.} and Fetters, {Lewis J.}",

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T1 - Temperature dependence of unperturbed dimensions for stereoirregular 1,4‐polybutadiene and poly(α‐methylstyrene)

AU - Mays, Jimmy W.

AU - Hadjichristidis, Nikos

AU - Graessley, William W.

AU - Fetters, Lewis J.

PY - 1986/11

Y1 - 1986/11

N2 - The temperature coefficient of chain dimensions, d ln〈r2〉0/dT, was determined for stereoirregular 1,4‐polybutadiene and poly(α‐methylstyrene) via dilute solution viscometry. The 1,4‐polybutadiene was examined in oligomeric 1,4‐polybutadiene (an athermal solvent), and poly(α‐methylstyrene) was evaluated under near‐theta conditions using 1‐chloro‐n‐alkanes as solvents. Both approaches minimize the potential for influence by specific solvent effects. The resulting temperature coefficients, −0.10 × 10−3 deg−1 for 1,4‐polybutadiene and −0.30 × 10−3 deg−1 for poly(α‐methylstyrene) are in excellent agreement with rotational isomeric state calculations.

AB - The temperature coefficient of chain dimensions, d ln〈r2〉0/dT, was determined for stereoirregular 1,4‐polybutadiene and poly(α‐methylstyrene) via dilute solution viscometry. The 1,4‐polybutadiene was examined in oligomeric 1,4‐polybutadiene (an athermal solvent), and poly(α‐methylstyrene) was evaluated under near‐theta conditions using 1‐chloro‐n‐alkanes as solvents. Both approaches minimize the potential for influence by specific solvent effects. The resulting temperature coefficients, −0.10 × 10−3 deg−1 for 1,4‐polybutadiene and −0.30 × 10−3 deg−1 for poly(α‐methylstyrene) are in excellent agreement with rotational isomeric state calculations.

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DO - 10.1002/polb.1986.090241112

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JO - Journal of Polymer Science Part B: Polymer Physics

JF - Journal of Polymer Science Part B: Polymer Physics

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ER -

Temperature dependence of unperturbed dimensions for stereoirregular 1,4‐polybutadiene and poly(α‐methylstyrene)

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