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The crystallization of two high impact polypropylenes (HIPP) was investigated under shear flow by online rheo-Raman spectroscopy. Abnormal retardation of crystallization under shear is observed in one HIPP, but the usual shear accelerated crystallization is observed in the other one. Such abnormal phenomenon was understood by thorough investigations on the phase separation behaviors in two HIPPs by...
Several non-metallocene-type titanium(IV) complexes containing phenoxy-phosphine or thiophenoxy-phosphine ligands of type, (2-R 1 -4-R 2 -6-PPh 2 -C 6 H 2 X) 2 TiCl 2 (2a: X = O, R 1 = R 2 = t-Bu; 2b: X = O, R 1 = R 2 = cumyl; 2c: X = S, R 1 = SiMe 3 , R 2 = H) have been synthesized...
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