TY - JOUR
T1 - Deformation-induced crystalline structure evolutions of isotactic poly-1-butene
AU - Guo, Huilong
AU - Zhou, Chengbo
AU - Zhang, Wenyang
AU - Wang, Jiayi
AU - Li, Jingqing
AU - Shang, Yingrui
AU - Meng, Yanfeng
AU - de Claville Christiansen, Jesper
AU - Yu, Donghong
AU - Wu, Zhonghua
AU - Jiang, Shichun
PY - 2016/10/18
Y1 - 2016/10/18
N2 - The deformation-induced crystalline structure evolutions of isotactic poly-1-butene (iP-1-B) during uniaxial stretching at different temperatures (45 and 75 °C) were investigated with in situ wide-angle X-ray scattering (WAXS) technology. The form I of iP-1-B was employed in this study. The obtained data on structure evolutions revealed that orientations would occur when the applied stress reached a critical value, while the orientation mechanisms are different at the two investigated temperatures. The crystallinity at 75 °C declines fast during deformation, and the orientation is caused by the melting disparity between the crystals parallel and perpendicular to the stretching direction. The high crystalline content during stretching at 45 °C maintains throughout the tensile process and the rotation of crystalline blocks results in the orientation. A brief schematic diagram was given to clarify the routes of orientation at the two temperatures.
AB - The deformation-induced crystalline structure evolutions of isotactic poly-1-butene (iP-1-B) during uniaxial stretching at different temperatures (45 and 75 °C) were investigated with in situ wide-angle X-ray scattering (WAXS) technology. The form I of iP-1-B was employed in this study. The obtained data on structure evolutions revealed that orientations would occur when the applied stress reached a critical value, while the orientation mechanisms are different at the two investigated temperatures. The crystallinity at 75 °C declines fast during deformation, and the orientation is caused by the melting disparity between the crystals parallel and perpendicular to the stretching direction. The high crystalline content during stretching at 45 °C maintains throughout the tensile process and the rotation of crystalline blocks results in the orientation. A brief schematic diagram was given to clarify the routes of orientation at the two temperatures.
KW - Deformation of iP-1-B
KW - In situ WAXS investigations
KW - Tensile temperature
KW - Deformation of iP-1-B
KW - In situ WAXS investigations
KW - Tensile temperature
UR - http://www.scopus.com/inward/record.url?scp=84991696885&partnerID=8YFLogxK
U2 - 10.1007/s00396-016-3964-x
DO - 10.1007/s00396-016-3964-x
M3 - Journal article
AN - SCOPUS:84991696885
SN - 0303-402X
VL - 294
SP - 1983
EP - 1988
JO - Colloid and Polymer Science
JF - Colloid and Polymer Science
IS - 12
ER -