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Chang D, Li T, Li L, Jakowski J, Huang J, Keum JK, Lee B, Bonnesen PV, Zhou M, Garashchuk S, Sumpter BG, Hong K. Selectively Deuterated Poly(ε-caprolactone)s: Synthesis and Isotope Effects on the Crystal Structures and Properties. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01851] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Dongsook Chang
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Tianyu Li
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Lengwan Li
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Jacek Jakowski
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Computational Sciences and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Jingsong Huang
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Computational Sciences and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Jong Kahk Keum
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Chemical and Engineering Materials Division, Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Byeongdu Lee
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Peter V. Bonnesen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Mi Zhou
- College of Materials Science and Engineering, Zhejiang University of Technology, Zhejiang 310014, China
| | - Sophya Garashchuk
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
| | - Bobby G. Sumpter
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Computational Sciences and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Kunlun Hong
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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Tashiro K, Gose N. Diffusion and aggregation of hydrogeneous and deuterated polyethylene chains at their interfacial boundary as studied by time- and space-resolved FTIR microscopic measurements. POLYMER 2001. [DOI: 10.1016/s0032-3861(01)00378-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sasaki S, Tashiro K, Gose N, Imanishi K, Izuchi M, Kobayashi M, Imai M, Ohashi M, Yamaguchi Y, Ohoyama K. Spatial Distribution of Chain Stems and Chain Folding Mode in Polyethylene Lamellae as Revealed by Coupled Information of DSC, FT-IR, SANS, and WANS. Polym J 1999. [DOI: 10.1295/polymj.31.677] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Sadler DM, Reiss-Husson F, Rivas E. Thickness measurements of single walled dimyristoyl phosphatidylcholine vesicles by neutron scattering. Chem Phys Lipids 1990; 52:41-8. [PMID: 2306789 DOI: 10.1016/0009-3084(90)90005-c] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A method of deriving by neutron scattering thicknesses of lamellae in suspensions has been applied to single-walled vesicles of dimyristoyl phosphatidylcholine. The contrast variation method, based on data obtained for a range of isotope mixtures, has been used to extract a dimension Dw related to the lipid bilayer thickness and a measure alpha of the difference of density within the lamellae. Isotope mixtures for the lipid were used to optimize the information available. Dw is compared with results from multilayer stacks of lipid layers. The thickness for the low temperature L beta, structure has been observed to be higher than for the high temperature L alpha structure. Preliminary experiments on the kinetics of the mixing of the lipid isotope species are reported, and evidence is shown that the species are not segregated for lipids either above or below the transition temperature.
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Affiliation(s)
- D M Sadler
- H.H. Wills Physics Laboratory, University of Bristol, ITL, U.K
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