Multiple phases in filled polymers detected by nuclear spin relaxation studies

Droste, D. H.; Dibenedetto, A. T.; Stejskal, E. O.

doi:10.1002/pol.1971.160090114

Cited by 7 publications

(3 citation statements)

References 11 publications

(1 reference statement)

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“…Recently, multiple phases in filled polymers have been detected by proton nuclear spin relaxation studies. [16][17] We wish to report some results of the effect of filler and moisture on the glass transition temperature of a filled binder as determined by thermal mechanical analysis (TMA) and wide-line proton nuclear magnetic resonance (NMR).…”

Section: Introductionmentioning

confidence: 99%

“…These physical changes have been explained qualitatively in terms of a two-phase system. 10,[15][16][17][18] One phase, which consists of polymer near the filler interface, has different conformational properties and is restricted in its molecular motion by interaction with filler. The other phase consists of polymer not in the immediate vicinity of the filler interface and has molecular properties similar to those of the pure polymer.…”

Section: Introductionmentioning

confidence: 99%

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The glass transition temperature of a filled binder by nuclear magnetic resonance and thermal mechanical analysis

Price¹,

French²,

Tompa³

1972

J of Applied Polymer Sci

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synopsisThe glass transition temperatures of a binder and filled binder were determined by wide line proton nuclear magnetic resonance and by thermal mechanical analysis. The NiMlt study indicated only one transition temperature for the binder and three transition temperatures for the filled binder. T N A data gave two transition temperatures each for the binder and for the filled binder. These transition temperatures in the filled binder were interpreted as representing two phases: one for the filler-oriented binder and one for the bulk phase. A comparison of the transition temperatures of the binder and filled binder indicates that the transition teniperature of the former is raised by the presence of the filler. It was also found that the presence of water lowered the transition temperature 01 the filled binder used in this work.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The glass transition temperature of a filled binder by nuclear magnetic resonance and thermal mechanical analysis

Price¹,

French²,

Tompa³

1972

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…In the literature one can find several approaches and characterization techniques to identify the interphase properties. These include nuclear magnetic resonance spectroscopy (NMR) (Droste et al 1971), Fourier transform infrared spectroscopy (FTIR) (Ishida and Koenig 1978), ion scattering spectroscopy (ISS) and secondary ion mass spectroscopy (SIMS) (Dibenedetto and Scola 1978), X-ray photoelectron spectroscopy (XPS) (Thomson and Dwight 1999), stereoscopic displacement analysis (Williams et al 1990), and nanoindentation (Hodzic et al 2000;Williams et al 1990).…”

Section: Introductionmentioning

confidence: 99%

Nanomechanics of cellulose crystals and cellulose-based polymer composites

Pakzad¹

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Temperature dependence of reinforcement in the composites polyurethane rubber–crosslinked polymeric filler

Kolařı́k

Hudeček

Lednický

et al. 1979

J of Applied Polymer Sci

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SynopsisThe temperature dependence of the components of the complex tensile and shear modulus of composites thermoplastic polyurethane rubber (Estan 5707)-crosslinked polymeric filler has been determined using torsional pendulum and Rheovibron viscoelastometer techniques. For comparison, dynamic mechanical properties of the system Estan 5707-glass beads were determined. The temperature dependence of the relative modulus (modulus of composite/modulus of matrix) of the former composites exhibited a pronounced maximum a t about 50°C above the glass transition temperature of the matrix. This maximum of reinforcement was discussed in terms of (a) immobilized interfacial layer, (b) broadening of the spectrum of relaxation times, and ( c ) increase in the glass transition temperature of the matrix. From t,he excess reinforcement, i.e., the discrepancy between experimental data and theoretical prediction, an apparent thickness of the immobilized layer was calculated.

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Multiple phases in filled polymers detected by nuclear spin relaxation studies

Cited by 7 publications

References 11 publications

The glass transition temperature of a filled binder by nuclear magnetic resonance and thermal mechanical analysis

The glass transition temperature of a filled binder by nuclear magnetic resonance and thermal mechanical analysis

Nanomechanics of cellulose crystals and cellulose-based polymer composites

Temperature dependence of reinforcement in the composites polyurethane rubber–crosslinked polymeric filler

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