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含两种介晶基元的侧链聚硅氧烷的液晶性能 被引量：1

Liquid Crystalline Properties of Side-Chain Polysiloxanes with Two Mesogenic Groups
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摘要 用两种液晶单体 4 丙烯酰氧基 1 丁酸胆甾醇酯和 4 烯丙氧基苯甲酸对氰基苯酯通过接枝共聚 ,引入到聚甲基含氢硅氧烷中制得了一系列侧链液晶聚合物·通过采用傅立叶转换红外光谱 (FTIR)对其结构进行了表征·用差示扫描量热方法 (DSC)及偏光显微分析方法 (POM )等研究了该系列液晶聚合物和单体的液晶性能·随着聚合物结构中胆甾醇酯类单体组分质量分数的增加 ,系列液晶聚合物的玻璃化温度呈现上升趋势·所有聚合物都具有较宽的介晶相范围· A series of liquid crystalline polymers were synthesized with cholesteryl 4-allyloxy-1-butyrate and p-cyanophenol-4-allyloxybenzoate. The liquid crystalline properties of the polysiloxanes and monomers were characterized by DSC measurements and polarized microscopy. It is snown that the glass transition temperature decreases with decreasing the content of the cholesteric mosogens in the polymers. All of the polymers show liquid crystalline features with a broad mesogenic region.
作者 孟凡宝 贾迎钢 张宝砚 郑莹莹
机构地区 东北大学理学院
出处 《东北大学学报（自然科学版）》 EI CAS CSCD 北大核心 2003年第2期201-203,共3页 Journal of Northeastern University(Natural Science)
基金 国家重点基础研究发展规划项目前期研究专项
关键词 液晶聚合物 聚硅氧烷 侧链聚合物 液晶织构 胆甾相 接枝共聚 液晶性能 liquid crystalline polymer polysiloxane side-chain polymer texture cholesteric phase graft copolymerization
分类号 O634.41 [理学—高分子化学] O753.2 [理学—晶体学]
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参考文献9

  • 1Xue M G,Chen Y Y,He Y E. Synthesis and properties of cholesteric liquid crystal crown ether[J]. Mol Cryst Liq Cryst, 1991,209:213-223.
  • 2Hattori H,Uryu T. Synthesis and properties of photochromic liquid crystalline copolymer containing both spironaphthoxazine and cholesteryl groups[J]. J Poly Chem, 2000,38:887-894.
  • 3Natarajan L V, Bunning T J, Kim S Y. Photochromic liquid crystalline cylic sioxanes containing spiropyran groups[J]. Macromolecules, 1994,27:7248-7253.
  • 4Finkelmann H. Properties of liquid crystalline polymers[J]. Makromol Chem Rapid Commun, 1980,(1):31-37.
  • 5Shibaev V P, Plate N A. Thermotropic liquid crystalline polymers Ⅰ cholesterol-containing polymers and copolymers[J]. J Poly Sci Part A, Poly Chem, 1979,17:1655-1670.
  • 6Hideshi H, Toshiyuki U. Synthesis and properties of photochromic liquid copolymers containing both spironaphthoxazine and cholesteryl groups[J]. J Poly Sci Part A, Poly Chem, 2000,38:887-894.
  • 7Rukmani S,Ganga R. Synthesis and characterization of liquid crystalline polyesters with chiral and achrial twin spacers[J]. J Poly Sci Part A, Poly Chem, 2001,39:1743-1752.
  • 8Espinosa M A,Cadiz V,Galia M. New cholesteric liquid-cryatal epoxy resins derived from 6-hydroxy-2-naphthoic acid[J]. J Poly Sci Part A, Poly Chem, 2001,39:2847-2858.
  • 9Shibaev V P,Talroze R V,Karakhanova F I,et al. Thermotropic liquid crystalline polymers Ⅱ polymers with amino acid fragments in the side chains[J]. J Poly Sci Part A, Poly Chem, 1979,17:1671-1684.

同被引文献9

  • 1Cranford R J, Roy C, Matsuura T. Vapor permeation applied for the separation of water from organic compounds and gases using asymmetric p olyetherimide/polyvinylpyrrolidene capillary tubes[J].Can J Chem Eng,1997,75(2):471－475.
  • 2Beuscher U, Gooding C H. Characterization of the porous support layer of composite gas permeation membranes[J]. J Membr Sci,1997,132:213－227.
  • 3Fritsch D, Peinemann K V, Behling RD. Silicone/ non-silicone grafted composite membranes for air vapor separation[J]. Desalination,1993,90:235－247.
  • 4Chabot S, Roy C, Chowdhury G, et al. Development of poly(vinylidene fluoride) hollow fiber membranes for the treatment of water/organ ic vapor mixtures[J]. J Appl Polymer Sci,1997,65:1263－1270.
  • 5Schultz J, Peinemann K V. Membranes for the separation of higher hydrocarbons from methane[J]. J Membr Sci,1996,110:37－45.
  • 6Ilinitch O M, Semin C L, Chertova M V, et al. Novel polymeric membranes for separation of hydrocarbons[J]. J Membr Sci,1992,66:1－8.
  • 7Wang D L, Li K, Teo W K. Porous PVDF asymmetric hollow fiber membranes prepared with the use of small molecular additives[J]. J Membr Sci,2000,178:13－23.
  • 8Kong J F, Li K. An improved gas permeation method for characterizing and predicting the performance of microporous asymmetric hollow fiber membranes used in gas absorption[J] .J Membr Sci,2001,182:271－281.
  • 9Kimmerle K, Hofmann T, Strathmann H. Analysis of gas permeation through composite membranes[J]. J Membr Sci,1991,61:1－17.

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东北大学学报（自然科学版）
2003年 第2期

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