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Citation: Guo Rong. The Effects of Chain Length of Straight Chain Alcohol on the Strucutre and Stability of Lamellar Liquid Crystal[J]. Acta Physico-Chimica Sinica, ;1991, 7(06): 703-707. doi: 10.3866/PKU.WHXB19910613 shu

The Effects of Chain Length of Straight Chain Alcohol on the Strucutre and Stability of Lamellar Liquid Crystal

Guo Rong

1.
Chemistry Department, Yangzhou Teachers College, Yangzhou 225002

Received Date: 15 May 1990
Available Online: 15 December 1991

The measurements of low angle X-ray diffraction showed that the degression of d_0 of lamellar liquid crystal with increase of weight ratio of C_nOH/SDS decreased with increase of the carbon chain length of alcohol used aseosurfactant. The values of d_0 increased with carbon number of alcohol n at certain weight ratio of C_nOH/SDS. The increase of interlayer spacing d with n was related with the increase of d_0 and the decrease of solvent penetration in lamellar liquid crystal under the conditione of weight ratio of C_nOH/SDS and water content. Both the measurements of low angle X-ray diffraction and the phase diagram behavior showed that the stability of lamellar liquid crystal increased with the chain length of alcohol.
- Lamellar liquid crystal; Straight chain alcohol; Chain length; Stability; Low angle X-ray diffraction
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