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molecular weight

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Published: 15 May 2022
Fig. 4 Torque rheometry as a function of molecular weight More
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Published: 15 May 2022
Fig. 7 Relationship of molecular weight to zero-shear viscosity More
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Published: 15 May 2022
Fig. 12 Sensitivity of solution versus melt rheometry to molecular weight More
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Published: 15 May 2022
Fig. 13 Narrow versus broad molecular weight distribution More
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Published: 01 August 2013
Fig. 81 Effect of molecular weight (MW) and viscosity of petroleum oil basestock on cooling curve behavior. Source: Ref 210 More
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Published: 01 January 2000
Fig. 2 Influence of molecular weight and temperature on the physical state of polymers. (a) Amorphous polymer. (b) Crystalline polymer. Source: Ref 2 More
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Published: 01 January 1997
Fig. 2 General influence of molecular weight on polymer properties. Source: Ref 13 More
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Published: 01 January 1997
Fig. 3 Viscosity dependence on molecular weight exhibiting M c . Source: Ref 14 More
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Published: 31 December 2017
Fig. 6 Comparison of ultrahigh molecular weight polyethylene (UHMWPE) pin wear from uniaxial reciprocating motion at 2 Hz ( Fig. 3d ) and crossing motion at cycle rates of 1 and 2 Hz ( Fig. 3e ) for 2-million cycles. Source: Ref 37 More
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Published: 01 June 2012
Fig. 1 Physical properties of polymers as a function of molecular weight. T g , glass transition temperature. Source: Ref 1 More
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Published: 01 June 2012
Fig. 2 Relationship between polymer melt viscosity and average molecular weight ( M w ). Source: Ref 1 More
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Published: 01 June 2012
Fig. 3 Generic illustration of molecular weight distribution More
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Published: 01 January 2003
Fig. 23 Modifications of toluene diisocyanate (TDI) to form higher-molecular-weight polyisocyanates. (a) Polymerization of TDI with an alcohol to produce a TDI alcohol adduct. (b) Condensation of TDI monomer to produce an isocyanate ring. Source: Ref 5 More
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Published: 01 January 2001
Fig. 2 Effect of formulated molecular weight on resin flow of HTS graphite fiber-PMR More
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003848
EISBN: 978-1-62708-183-2
... Abstract Elastomers belong to a group of materials known as polymers that acquire their properties and strength from their molecular weight, chain entanglements, and crystalline regions. This article focuses on the use of elastomers as seals and describes its performance capabilities from...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
.... The descriptions of the analytical techniques are supplemented by a series of case studies that include pertinent visual examination results and the corresponding images that aid in the characterization of the failures. The article describes the methods used for determining the molecular weight of a plastic resin...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006849
EISBN: 978-1-62708-395-9
... Fig. 1 ASTM solution viscosity relationships Fig. 2 Examples of viscosity behavior Fig. 4 Torque rheometry as a function of molecular weight Fig. 5 Torque rheometry as a function of parts per hundred of filler Fig. 6 Torque rheometry as a function...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005678
EISBN: 978-1-62708-198-6
... Abstract Total joint replacement in orthopedic surgery can be achieved by excision, interposition, and replacement arthroplasty. This article details the most common materials used in total replacement synovial joints: metals, ceramics, and ultrahigh molecular weight polyethylene (UHMWPE...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005659
EISBN: 978-1-62708-198-6
... Abstract This article provides a summary of the biocompatibility or biological response of metals, ceramics, and polymers used in medical implants, along with their clinical issues. The polymers include ultrahigh-molecular-weight polyethylene, nonresorbable polymer, and resorbable polymers...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001278
EISBN: 978-1-62708-170-2
... substrates. The materials described above are high-molecular-weight polymers and thus are not suitable for use in high-solids coatings. In patents by Etzell et al. ( Ref 7 , 8 , 9 ), acrylic polymers modified with caprolactone are described. The polymers are prepared in different ways, as described...