TY - JOUR
T1 - Preferential orientation of crystallites spatially confined in lamellar microdomains of polyethylene-block-[atactic poly(propylene)]
AU - Sakurai, Kazuo
AU - Shinkai, Seiji
AU - Ueda, Masaya
AU - Sakurai, Shinichi
AU - Nomura, Shunji
AU - MacKnight, Willam J.
AU - Lohse, David J.
PY - 2000/11/14
Y1 - 2000/11/14
N2 - Synchrotron small angle X-ray scattering (SAXS), wide angle X-ray scattering (WAXS), and transmission electron microscopy were carried out for an oriented polyethylene-block-[atactic poly(propylene)] with a molecular weight of 1.13 × 105 and a volume fraction of polyethylene of 0.5. Isothermal crystallization at 93°C did not destroy the pre-formed microdomain, however, with a higher crystallization temperature, the microdomain was more heavily deformed and more crystalline lamella grew. In WAXS profiles, preferential orientation of (020) reflection peak was observed, indicating that the crystalline lamella grew in parallel with the micro domain interface.
AB - Synchrotron small angle X-ray scattering (SAXS), wide angle X-ray scattering (WAXS), and transmission electron microscopy were carried out for an oriented polyethylene-block-[atactic poly(propylene)] with a molecular weight of 1.13 × 105 and a volume fraction of polyethylene of 0.5. Isothermal crystallization at 93°C did not destroy the pre-formed microdomain, however, with a higher crystallization temperature, the microdomain was more heavily deformed and more crystalline lamella grew. In WAXS profiles, preferential orientation of (020) reflection peak was observed, indicating that the crystalline lamella grew in parallel with the micro domain interface.
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U2 - 10.1002/1521-3927(20001101)21:16<1140::AID-MARC1140>3.0.CO;2-P
DO - 10.1002/1521-3927(20001101)21:16<1140::AID-MARC1140>3.0.CO;2-P
M3 - Article
AN - SCOPUS:23044521874
SN - 1022-1336
VL - 21
SP - 1140
EP - 1143
JO - Macromolecular Rapid Communications
JF - Macromolecular Rapid Communications
IS - 16
ER -