TY - JOUR
T1 - TRIREFRINGENCE TECHNIQUE FOR THE ANALYSIS OF BIAXIAL DEFORMATION
T2 - POLY(ETHYLENE TEREPHTHALATE) AND ISOTACTIC POLYPROPYLENE.
AU - Guan, Jia Y.
AU - Saraf, Ravi F.
AU - Porter, Roger S.
PY - 1986
Y1 - 1986
N2 - For amorphous poly(ethylene terephthalate) (PET), uniaxial deformation induces both chain orientation and crystallization. Conversely, the crystallinity drops on draw of highly crystalline (30-50%) PET. In contrast, crystals of isotactic polypropylene (i-PP) uniaxially drawn above glass transition (T//g) orient, but with no significant change in crystallinity. A comparison between i-PP and PET is made to distinguish the effect of biaxial deformation on pre-crystallized polymer (i-PP) and strain crystallizable polymer (PET). Trirefringence is used to characterize the orientation inducead by the deformation field on PET and i-PP.
AB - For amorphous poly(ethylene terephthalate) (PET), uniaxial deformation induces both chain orientation and crystallization. Conversely, the crystallinity drops on draw of highly crystalline (30-50%) PET. In contrast, crystals of isotactic polypropylene (i-PP) uniaxially drawn above glass transition (T//g) orient, but with no significant change in crystallinity. A comparison between i-PP and PET is made to distinguish the effect of biaxial deformation on pre-crystallized polymer (i-PP) and strain crystallizable polymer (PET). Trirefringence is used to characterize the orientation inducead by the deformation field on PET and i-PP.
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M3 - Conference article
AN - SCOPUS:0022866007
SN - 0733-4192
SP - 586
EP - 588
JO - Annual Technical Conference - Society of Plastics Engineers
JF - Annual Technical Conference - Society of Plastics Engineers
ER -