A small angle neutron scattering study of the conformation of a side chain liquid crystal poly(Methacrylate) in the smectic c phase

I. W. Hamley; J. P.A. Fairclough; S. M. King; J. Skovpedersen; R. M. Richardson; C. T. Imrie; A. A. Craig

doi:10.1080/026782997208776

A small angle neutron scattering study of the conformation of a side chain liquid crystal poly(Methacrylate) in the smectic c phase

I. W. Hamley^*, J. P.A. Fairclough, S. M. King, J. Skovpedersen, R. M. Richardson, C. T. Imrie, A. A. Craig

^*Corresponding author for this work

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Abstract

The conformation of the backbone in the side chain liquid crystal polymer poly[o- (4'-methoxybiphenyl-4-yloxy)butyl methacrylate] has been studied in the smectic C and nematic phases. Small angle neutron scattering experiments were performed on mixtures of molecules with perdeuteriated backbones and unlabelled molecules. The polymer is found to adopt an oblate conformation in the smectic C phase. The components of the radius of gyration parallel and perpendicular to the director are determined as a function of temperature from Guinier plots of the SANS data. The radii of gyration do not vary across the smectic phase and are found to be R_gǁ = (27 ± 1)Å, R_g)= (42 + 1)A. These results are compared with recent SANS results for other side chain liquid crystal polymers.

Original language	English
Pages (from-to)	679-684
Number of pages	6
Journal	Liquid Crystals
Volume	22
Issue number	6
DOIs	https://doi.org/10.1080/026782997208776
Publication status	Published - 1 Jan 1997

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title = "A small angle neutron scattering study of the conformation of a side chain liquid crystal poly(Methacrylate) in the smectic c phase",

abstract = "The conformation of the backbone in the side chain liquid crystal polymer poly[o- (4'-methoxybiphenyl-4-yloxy)butyl methacrylate] has been studied in the smectic C and nematic phases. Small angle neutron scattering experiments were performed on mixtures of molecules with perdeuteriated backbones and unlabelled molecules. The polymer is found to adopt an oblate conformation in the smectic C phase. The components of the radius of gyration parallel and perpendicular to the director are determined as a function of temperature from Guinier plots of the SANS data. The radii of gyration do not vary across the smectic phase and are found to be Rgǁ = (27 ± 1){\AA}, Rg)= (42 + 1)A. These results are compared with recent SANS results for other side chain liquid crystal polymers.",

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AU - Hamley, I. W.

AU - Fairclough, J. P.A.

AU - King, S. M.

AU - Skovpedersen, J.

AU - Richardson, R. M.

AU - Imrie, C. T.

AU - Craig, A. A.

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N2 - The conformation of the backbone in the side chain liquid crystal polymer poly[o- (4'-methoxybiphenyl-4-yloxy)butyl methacrylate] has been studied in the smectic C and nematic phases. Small angle neutron scattering experiments were performed on mixtures of molecules with perdeuteriated backbones and unlabelled molecules. The polymer is found to adopt an oblate conformation in the smectic C phase. The components of the radius of gyration parallel and perpendicular to the director are determined as a function of temperature from Guinier plots of the SANS data. The radii of gyration do not vary across the smectic phase and are found to be Rgǁ = (27 ± 1)Å, Rg)= (42 + 1)A. These results are compared with recent SANS results for other side chain liquid crystal polymers.

AB - The conformation of the backbone in the side chain liquid crystal polymer poly[o- (4'-methoxybiphenyl-4-yloxy)butyl methacrylate] has been studied in the smectic C and nematic phases. Small angle neutron scattering experiments were performed on mixtures of molecules with perdeuteriated backbones and unlabelled molecules. The polymer is found to adopt an oblate conformation in the smectic C phase. The components of the radius of gyration parallel and perpendicular to the director are determined as a function of temperature from Guinier plots of the SANS data. The radii of gyration do not vary across the smectic phase and are found to be Rgǁ = (27 ± 1)Å, Rg)= (42 + 1)A. These results are compared with recent SANS results for other side chain liquid crystal polymers.

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A small angle neutron scattering study of the conformation of a side chain liquid crystal poly(Methacrylate) in the smectic c phase

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