Relaxation nuclear magnetic resonance imaging investigation of heterogeneous aging in a hydroxy-terminated polybutadiene-based elastomer

T. M. Alam; B. R. Cherry; K. R. Minard; M. Celina

doi:10.1021/ma051906y

Relaxation nuclear magnetic resonance imaging investigation of heterogeneous aging in a hydroxy-terminated polybutadiene-based elastomer

T. M. Alam, B. R. Cherry, K. R. Minard, M. Celina

Arizona State University

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

7 Scopus citations

Abstract

Relaxation nuclear magnetic resonance imaging (R-NMRI) was employed to investigate the effects of thermooxidative aging in a hydroxy-terminated polybutadiene (HTPB)-based elastomer. A series of three-dimensional (3D) Hahn-echo-weighted single-point images (SPD of the elastomer were utilized to generate a 3D parameter map of the aged material. NMR spin-spin relaxation times (T ₂) were measured for each voxel producing a 3D NMR parameter (T ₂) map of the aged polymer. These T ₂ maps reveal a dramatic reduction of local polymer mobility near the aging surface with the degree of T ₂ heterogeneity varying as a function of aging. Using correlations between NMR T ₂ and material modulus, the impact of this heterogeneous thermooxidative aging on the material properties is discussed.

Original language	English (US)
Pages (from-to)	10694-10701
Number of pages	8
Journal	Macromolecules
Volume	38
Issue number	26
DOIs	https://doi.org/10.1021/ma051906y
State	Published - Dec 27 2005

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1021/ma051906y

Cite this

@article{d4a7aaada94b4448950312be56f37ca7,

title = "Relaxation nuclear magnetic resonance imaging investigation of heterogeneous aging in a hydroxy-terminated polybutadiene-based elastomer",

abstract = "Relaxation nuclear magnetic resonance imaging (R-NMRI) was employed to investigate the effects of thermooxidative aging in a hydroxy-terminated polybutadiene (HTPB)-based elastomer. A series of three-dimensional (3D) Hahn-echo-weighted single-point images (SPD of the elastomer were utilized to generate a 3D parameter map of the aged material. NMR spin-spin relaxation times (T 2) were measured for each voxel producing a 3D NMR parameter (T 2) map of the aged polymer. These T 2 maps reveal a dramatic reduction of local polymer mobility near the aging surface with the degree of T 2 heterogeneity varying as a function of aging. Using correlations between NMR T 2 and material modulus, the impact of this heterogeneous thermooxidative aging on the material properties is discussed.",

author = "Alam, {T. M.} and Cherry, {B. R.} and Minard, {K. R.} and M. Celina",

year = "2005",

month = dec,

day = "27",

doi = "10.1021/ma051906y",

language = "English (US)",

volume = "38",

pages = "10694--10701",

journal = "Macromolecules",

issn = "0024-9297",

publisher = "American Chemical Society",

number = "26",

}

TY - JOUR

T1 - Relaxation nuclear magnetic resonance imaging investigation of heterogeneous aging in a hydroxy-terminated polybutadiene-based elastomer

AU - Alam, T. M.

AU - Cherry, B. R.

AU - Minard, K. R.

AU - Celina, M.

PY - 2005/12/27

Y1 - 2005/12/27

N2 - Relaxation nuclear magnetic resonance imaging (R-NMRI) was employed to investigate the effects of thermooxidative aging in a hydroxy-terminated polybutadiene (HTPB)-based elastomer. A series of three-dimensional (3D) Hahn-echo-weighted single-point images (SPD of the elastomer were utilized to generate a 3D parameter map of the aged material. NMR spin-spin relaxation times (T 2) were measured for each voxel producing a 3D NMR parameter (T 2) map of the aged polymer. These T 2 maps reveal a dramatic reduction of local polymer mobility near the aging surface with the degree of T 2 heterogeneity varying as a function of aging. Using correlations between NMR T 2 and material modulus, the impact of this heterogeneous thermooxidative aging on the material properties is discussed.

AB - Relaxation nuclear magnetic resonance imaging (R-NMRI) was employed to investigate the effects of thermooxidative aging in a hydroxy-terminated polybutadiene (HTPB)-based elastomer. A series of three-dimensional (3D) Hahn-echo-weighted single-point images (SPD of the elastomer were utilized to generate a 3D parameter map of the aged material. NMR spin-spin relaxation times (T 2) were measured for each voxel producing a 3D NMR parameter (T 2) map of the aged polymer. These T 2 maps reveal a dramatic reduction of local polymer mobility near the aging surface with the degree of T 2 heterogeneity varying as a function of aging. Using correlations between NMR T 2 and material modulus, the impact of this heterogeneous thermooxidative aging on the material properties is discussed.

UR - http://www.scopus.com/inward/record.url?scp=30744441172&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=30744441172&partnerID=8YFLogxK

U2 - 10.1021/ma051906y

DO - 10.1021/ma051906y

M3 - Article

AN - SCOPUS:30744441172

SN - 0024-9297

VL - 38

SP - 10694

EP - 10701

JO - Macromolecules

JF - Macromolecules

IS - 26

ER -

Relaxation nuclear magnetic resonance imaging investigation of heterogeneous aging in a hydroxy-terminated polybutadiene-based elastomer

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this