Controlling molecular mobility and ductile–brittle transitions of polycarbonate copolymers
dc.contributor.author | Wu, Jinhuang | en_US |
dc.contributor.author | Xiao, Chaodong | en_US |
dc.contributor.author | Yee, Albert F. | en_US |
dc.contributor.author | Klug, Christopher A. | en_US |
dc.contributor.author | Schaefer, Jacob | en_US |
dc.date.accessioned | 2006-04-19T14:04:01Z | |
dc.date.available | 2006-04-19T14:04:01Z | |
dc.date.issued | 2001-08-01 | en_US |
dc.identifier.citation | Wu, Jinhuang; Xiao, Chaodong; Yee, Albert F.; Klug, Christopher A.; Schaefer, Jacob (2001)."Controlling molecular mobility and ductile–brittle transitions of polycarbonate copolymers." Journal of Polymer Science Part B: Polymer Physics 39(15): 1730-1740. <http://hdl.handle.net/2027.42/35007> | en_US |
dc.identifier.issn | 0887-6266 | en_US |
dc.identifier.issn | 1099-0488 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/35007 | |
dc.description.abstract | To control molecular mobility and study its effects on mechanical properties, we synthesized two series of poly(ester carbonate) and polycarbonate copolymers with different linkages: (B x t) n ( x = 3, 5, 7, 9) and (B x T) n ( x = 1, 3, 5, 7, 9), where t represents the terephthalate, T represents the tetramethyl bisphenol A carbonate linkages, and B is the conventional bisphenol-A (BPA) carbonate. These two series of materials have distinct differences in their relaxation behaviors and chain mobility, as indicated by the Π-flip motion of the phenylene rings in the B x blocks. Uniaxial tensile tests of the copolymers indicate that the brittle–ductile transition (BDT) temperatures of the copolymers are correlated to whether the Γ-relaxation peaks due to the B x sequence is fully established. The materials possessing more fully established low-temperature Γ peaks give rise to a lower BDT. Also, the locations of the Γ peaks are correlated to the ring flips of the B x blocks of polymer chains. © 2001 John Wiley & Sons, Inc. J Polym Sci Part B: Polym Phys 39: 1730–1740, 2001 | en_US |
dc.format.extent | 235604 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | John Wiley & Sons, Inc. | en_US |
dc.subject.other | Chemistry | en_US |
dc.subject.other | Polymer and Materials Science | en_US |
dc.title | Controlling molecular mobility and ductile–brittle transitions of polycarbonate copolymers | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Materials Science and Engineering | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Macromolecular Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 | en_US |
dc.contributor.affiliationum | Macromolecular Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 | en_US |
dc.contributor.affiliationum | Macromolecular Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 ; Macromolecular Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 | en_US |
dc.contributor.affiliationum | Macromolecular Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 | en_US |
dc.contributor.affiliationother | Chemistry Department, Washington University in St. Louis, St. Louis, Missouri 63130 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/35007/1/1146_ftp.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1002/polb.1146 | en_US |
dc.identifier.source | Journal of Polymer Science Part B: Polymer Physics | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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