Small-Angle Neutron Scattering Investigations of Liquid−Liquid Phase Separation in Heterogeneous Linear Low-Density Polyethylene

1996 ◽  
Vol 29 (16) ◽  
pp. 5332-5335 ◽  
Author(s):  
G. D. Wignall ◽  
R. G. Alamo ◽  
J. D. Londono ◽  
L. Mandelkern ◽  
F. C. Stehling
Keyword(s):  
Phase Separation ◽  
Liquid Phase ◽  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Liquid Phase Separation ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Liquid Liquid Phase Separation

Liquid - liquid phase separation in linear low density polyethylene - solvent systems

1996 ◽  
Vol 117 (1-2) ◽  
pp. 40-47 ◽  
Author(s):  
Th.W. de Loos ◽  
L.J. de Graaf ◽  
J. de Swaan Arons
Keyword(s):  
Phase Separation ◽  
Liquid Phase ◽  
Liquid Phase Separation ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Solvent Systems ◽  
Liquid Liquid Phase Separation

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

2009 ◽  
Vol 42 (2) ◽  
pp. 161-168 ◽  
Author(s):  
Tae Joo Shin ◽  
Byeongdu Lee ◽  
Jinwon Lee ◽  
Sangwoo Jin ◽  
Baik Shuk Sung ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Polyethylene Blends ◽  
Scattering Study ◽  
Neutron Scattering Study ◽  
Crystallization From The Melt

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 cocrystallizeviafast crystallization from the melt state.

Ultra-High Resolution Small-Angle Neutron Scattering Investigations of Liquid-Liquid Phase Separation in Linear Low-Density Polyethylene

1996 ◽  
Vol 461 ◽  
Author(s):  
M. M. Agamalian ◽  
R. G. Alamo ◽  
J. D. Londono ◽  
L. Mandelkern ◽  
S. Spooner ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Disperse Phase ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Volume Fraction ◽  
Amorphous Material ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Phase Volume Fraction

ABSTRACTPrevious small-angle neutron scattering (SANS) studies [1] of heterogeneous ethylene-hexene linear low-density polyethylene (LLDPE) copolymers have confirmed the existence of a dispersed minority phase (volume fraction φ ∼ 10−2) consisting of highly branched, amorphous material. However, these experiments were conducted via a pinhole SANS spectrometer with an upper resolution limit ∼ 103 Å, whereas microscopy indicates that the dimensions of the disperse phase extend to the μm-range. We have therefore complemented these investigations via a Bonse-Hart ultra-small angle neutron scattering (USANS) instrument which increases the instrumental resolution in reciprocal space by a factor - 100, and thus particle size up to 30 μm can be resolved. The sensitivity of the USANS camera has recently been increased by two orders of magnitude by using the modified channel cut crystals [2], and the performance is therefore comparable to the best x-ray Bonse-Hart cameras. Xylene extraction removes the highly branched molecules and hence the volume fraction of the disperse phase is higher (φ ∼ 0.3) in the extracted material.

SANS Studies of Liquid−Liquid Phase Separation in Heterogeneous and Metallocene-Based Linear Low-Density Polyethylenes

2001 ◽  
Vol 34 (23) ◽  
pp. 8160-8165 ◽  
Author(s):  
G. D. Wignall ◽  
R. G. Alamo ◽  
E. J. Ritchson ◽  
L. Mandelkern ◽  
D. Schwahn
Keyword(s):  
Phase Separation ◽  
Liquid Phase ◽  
Liquid Phase Separation ◽  
Low Density ◽  
Liquid Liquid Phase Separation

BPTI liquid-liquid phase separation monitored by light and small angle X-ray scattering

2002 ◽  
Vol 58 (10) ◽  
pp. 1560-1563 ◽  
Author(s):  
S. Grouazel ◽  
J. Perez ◽  
J.-P. Astier ◽  
F. Bonneté ◽  
S. Veesler
Keyword(s):  
Phase Separation ◽  
Liquid Phase ◽  
Small Angle ◽  
Liquid Phase Separation ◽  
X Ray ◽  
X Ray Scattering ◽  
Liquid Liquid Phase Separation ◽  
Ray Scattering

scholarly journals Liquid-Liquid Phase Separation of Tau Driven by Hydrophobic Interaction Facilitates Fibrillization of Tau

2021 ◽  
Vol 433 (2) ◽  
pp. 166731
Author(s):  
Yanxian Lin ◽  
Yann Fichou ◽  
Andrew P. Longhini ◽  
Luana C. Llanes ◽  
Pengyi Yin ◽  
...  
Keyword(s):  
Phase Separation ◽  
Liquid Phase ◽  
Hydrophobic Interaction ◽  
Liquid Phase Separation ◽  
Liquid Liquid Phase Separation
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