Synthesis and unperturbed dimensions of poly(diphenylmethyl methacrylate)

Jimmy W. Mays; Nikos Hadjichristidis; J. S. Lindner

doi:10.1002/polb.1990.090281101

Synthesis and unperturbed dimensions of poly(diphenylmethyl methacrylate)

Jimmy W. Mays^*, Nikos Hadjichristidis, J. S. Lindner

^*Corresponding author for this work

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

8 Scopus citations

Abstract

The synthesis, fractionation, and characterization of poly(diphenylmethyl methacrylate) (PDPMM) are described. Analysis of tacticity by ¹³C nuclear magnetic resonance (NMR) revealed a high (25%) isotactic content. Results of low‐angle light scattering and intrinsic viscosity measurements in toluene indicate that PDPMM chains behave as random coils and that toluene is a thermodynamically good solvent. The characteristic ratio C_∞ of the chains was determined from viscosity measurements in a near‐theta solvent, 3‐heptanone at 45°C. The corresponding value of C_∞ = 14.0 is consistent with previous work on poly(triphenylmethyl methacrylate), C_∞ = 20.3, and poly(benzyl methacrylate), C_∞ = 10.0, and reflects the bulkiness of the side group and the increase in isotactic content of the chains with increasing substitution.

Original language	English (US)
Pages (from-to)	1881-1889
Number of pages	9
Journal	Journal of Polymer Science Part B: Polymer Physics
Volume	28
Issue number	11
DOIs	https://doi.org/10.1002/polb.1990.090281101
State	Published - Oct 1990
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.1990.090281101

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title = "Synthesis and unperturbed dimensions of poly(diphenylmethyl methacrylate)",

abstract = "The synthesis, fractionation, and characterization of poly(diphenylmethyl methacrylate) (PDPMM) are described. Analysis of tacticity by 13C nuclear magnetic resonance (NMR) revealed a high (25%) isotactic content. Results of low‐angle light scattering and intrinsic viscosity measurements in toluene indicate that PDPMM chains behave as random coils and that toluene is a thermodynamically good solvent. The characteristic ratio C∞ of the chains was determined from viscosity measurements in a near‐theta solvent, 3‐heptanone at 45°C. The corresponding value of C∞ = 14.0 is consistent with previous work on poly(triphenylmethyl methacrylate), C∞ = 20.3, and poly(benzyl methacrylate), C∞ = 10.0, and reflects the bulkiness of the side group and the increase in isotactic content of the chains with increasing substitution.",

author = "Mays, {Jimmy W.} and Nikos Hadjichristidis and Lindner, {J. S.}",

year = "1990",

month = oct,

doi = "10.1002/polb.1990.090281101",

language = "English (US)",

volume = "28",

pages = "1881--1889",

journal = "Journal of Polymer Science Part B: Polymer Physics",

issn = "0887-6266",

publisher = "John Wiley & Sons Inc.",

number = "11",

}

TY - JOUR

T1 - Synthesis and unperturbed dimensions of poly(diphenylmethyl methacrylate)

AU - Mays, Jimmy W.

AU - Hadjichristidis, Nikos

AU - Lindner, J. S.

PY - 1990/10

Y1 - 1990/10

N2 - The synthesis, fractionation, and characterization of poly(diphenylmethyl methacrylate) (PDPMM) are described. Analysis of tacticity by 13C nuclear magnetic resonance (NMR) revealed a high (25%) isotactic content. Results of low‐angle light scattering and intrinsic viscosity measurements in toluene indicate that PDPMM chains behave as random coils and that toluene is a thermodynamically good solvent. The characteristic ratio C∞ of the chains was determined from viscosity measurements in a near‐theta solvent, 3‐heptanone at 45°C. The corresponding value of C∞ = 14.0 is consistent with previous work on poly(triphenylmethyl methacrylate), C∞ = 20.3, and poly(benzyl methacrylate), C∞ = 10.0, and reflects the bulkiness of the side group and the increase in isotactic content of the chains with increasing substitution.

AB - The synthesis, fractionation, and characterization of poly(diphenylmethyl methacrylate) (PDPMM) are described. Analysis of tacticity by 13C nuclear magnetic resonance (NMR) revealed a high (25%) isotactic content. Results of low‐angle light scattering and intrinsic viscosity measurements in toluene indicate that PDPMM chains behave as random coils and that toluene is a thermodynamically good solvent. The characteristic ratio C∞ of the chains was determined from viscosity measurements in a near‐theta solvent, 3‐heptanone at 45°C. The corresponding value of C∞ = 14.0 is consistent with previous work on poly(triphenylmethyl methacrylate), C∞ = 20.3, and poly(benzyl methacrylate), C∞ = 10.0, and reflects the bulkiness of the side group and the increase in isotactic content of the chains with increasing substitution.

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U2 - 10.1002/polb.1990.090281101

DO - 10.1002/polb.1990.090281101

M3 - Article

AN - SCOPUS:0025508266

SN - 0887-6266

VL - 28

SP - 1881

EP - 1889

JO - Journal of Polymer Science Part B: Polymer Physics

JF - Journal of Polymer Science Part B: Polymer Physics

IS - 11

ER -

Synthesis and unperturbed dimensions of poly(diphenylmethyl methacrylate)

Abstract

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