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Polybutadiene

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Published: 15 May 2022
Fig. 11 Degree of polymerization of polybutadiene rubber at 25 °C (77 °F). MW, molecular weight. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0090430
EISBN: 978-1-62708-222-8
... on quality-control hold. Investigation included visual inspection, 24x micrographs, and FTIR in the reflectance mode. The spectrum obtained on the included material was characteristic of polybutadiene, the rubber-modifying agent present in ABS. This supported the conclusion that the inclusion's most likely...
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Published: 01 January 2002
Fig. 18 The FTIR spectrum obtained on the included particle, characteristic of polybutadiene More
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Published: 01 June 2019
Fig. 2 The FTIR spectrum obtained on the included particle, characteristic of polybutadiene More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0090427
EISBN: 978-1-62708-222-8
... of material loss, as shown in Fig. 1 . The observed morphology suggested selective degradation of the polybutadiene domains within the ABS resin. Fig. 1 Scanning electron image showing isolated degradation of the grip material. 30x Micro-FTIR in the ATR mode was used to analyze the base...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001528
EISBN: 978-1-62708-219-8
... no definitive match with the FTIR spectrum for the black foam insulation, probably because of its complex composition. Portions of the spectrum match aluminum hydroxide (consistent with the high aluminum observed in the EDS spectrum), polybutadiene (a rubber), and polyvinyl chloride (PVC). The FTIR spectrum...
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
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006920
EISBN: 978-1-62708-395-9
... to styrene-based polymers ( Fig. 9 ) ( Ref 29 ). Fig. 9 Phenyl ring opening reactions Elastomeric Polymers Elastomeric polymers, such as polybutadiene, polyisoprene, nitrile-butadiene copolymer, and styrene-butadiene copolymer, contain double bonds in their polymer main chain...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006915
EISBN: 978-1-62708-395-9
... (HDPE) –120 –184 135 275 26–33 3.8–4.8 Linear low-density polyethylene (LLDPE) –120 –184 125 257 15–32 2.2–4.6 Polybutadiene: 1,4-cis –102 –152 … … 21 (a) 3.1 (a) Polybutadiene: 1,4-trans –107 –161 … … 14 (a) 2.0 (a) Trans-1,4-polyisoprene, gutta percha or balata...
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
... . This means that only a slight change in MW corresponds to a significant change in melt viscosity, unlike conventional solution techniques, which are dramatically less sensitive (η = k ( MW ) 0.6 , as shown in Fig. 12 . Fig. 11 Degree of polymerization of polybutadiene rubber at 25 °C (77 °F). MW...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006925
EISBN: 978-1-62708-395-9
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006913
EISBN: 978-1-62708-395-9
... Chlorobutyl Chloroisobutylene-isoprene Same general properties as butyl BR Cis-4 Polybutadiene Used principally as a blend in other rubbers Thiokol (PS) Polysulfide Widely used for potting of electrical connectors R EPR Ethylene-propylene Good general-purpose electrical properties R...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006939
EISBN: 978-1-62708-395-9
...; PE, polyethylene; LDPE, low-density polyethylene; PVC, polyvinyl chloride; ABS, acrylonitrile-butadiene-styrene; SBS, styrene-butadiene-styrene; PA, polyamide; PP, polypropylene; POM, polyoxymethylene. (b) PB, polybutadiene; SBR, styrene-butadiene- rubber ; NBR, nitrile-butadiene-rubber; SAN, styrene...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.9781627083959
EISBN: 978-1-62708-395-9
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006943
EISBN: 978-1-62708-395-9
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006923
EISBN: 978-1-62708-395-9
... 260 Polyisoprene    Cis: natural rubber −73 −100 28 80    Trans: gutta percha … … … … Polymethylpentene (poly-4-methyl-1-pentene) 29 85 250 480 Polybutadiene (poly-1,2-butadiene, butadiene rubber)    Syndiotactic −90 −130 154 310    Isotactic −90 −130 120 250...