Small-angle neutron scattering study of the miscibility of metallocene-catalyzed octene linear low-density polyethylene and low-density polyethylene blends

• Published in: Journal of applied crystallography Vol. 42; no. 2; pp. 161 - 168
• Main Authors: Shin, Tae Joo, Lee, Byeongdu, Lee, Jinwon, Jin, Sangwoo, Sung, Baik Shuk, Han, Young Soo, Lee, Chang-Hee, Stein, Richard S., Ree, Moonhor
• Format: Journal Article
• Language: English
• Published: 5 Abbey Square, Chester, Cheshire CH1 2HU, England International Union of Crystallography 01-04-2009; Blackwell Publishing Ltd
• Subjects: Catalysis; cocrystallization; Crystallization; Crystallography; Low density polyethylenes; melt state; miscibility; Neutrons; octene-mLLDPE/LDPE blends; radius of gyration; small-angle neutron scattering (SANS); small-angle X-ray scattering (SAXS); solid state
• ISSN: 1600-5767; 0021-8898; 1600-5767
• DOI: 10.1107/S0021889809002854

Small‐angle neutron scattering (SANS) analysis was performed to investigate the miscibility of blends of metallocene‐catalyzed octene linear low‐density polyethylene (octene‐mLLDPE) and low‐density polyethylene (LDPE). The quantitative SANS analysis found that the blends are miscible in both the melt and the quenched states. Moreover, this analysis confirmed that the radii of gyration of octene‐mLLDPE(D) and LDPE(H) remain unchanged in the quenched state and that the two polymer components cocrystallize via fast crystallization from the melt state.