高强度水凝胶的研究现状_王兰兰(6)

张永勇等 · 壳聚糖及其衍生物在重金属污染废水处理中的应用

36(2): 75–78．

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子的吸附特性[J]. 高分子材料科学与工程, 2013, 29(1): 56–58．

[25] 邹晓亮, 王劲松, 莫辉艳, 等. β–环糊精交联磁性

壳聚糖对U(VI)的吸附性能及机制研究[J]. 原子能科学技术, 2013, 47(4): 540–545．

[26] Sag Yesim, Aktay Yücel. A comparative study for the

sorption of Cu(II) ions by chitin and chitosan: Ap-plication of equilibrium and mass transfer models[J]. Separation Science and Technology, 2002, 37(12): 2801–2822.

[27] Zhang Sai, Zhou Yifeng, Nie Wangyan, et al.

Preparation of Fe3O4/chitosan/poly(acrylic acid)

· 45 ·

composite particles and its application in adsorb-ing copper ion (II)[J]. Cellulose, 2012, 19: 2081–2091.

[28] Chen Daimei, Li Wa, Wu Yanru, et al. Prepara-tion and characterization of chitosan/montmoril-lonite magnetic microspheres and its application for the removal of Cr(VI)[J]. Chemical Engineer-ing Journal, 2013, 221: 8–15.

[29] Zhang Lingfan, Xia Wei, Teng Bo, et al. Zirco-nium cross-linked chitosan composite: Prepara-tion, characterization and application in adsorp-tion of Cr(VI)[J]. Chemical Engineering Journal, 2013, 229: 1–8.

Application of Chitosan and Its Derivatives in Treatment of Heavy

Metal Contaminated WastewaterZHANG Yongyong, XU Guogen

(603 Staff Room, The Second Artillery Engineering University, Xi’an 710025, China)

Abstract：The flocculation principle and modification methods of chitosan and the adsorption of its derivatives to heavy metal ions are mainly introduced, and the application prospect of chitosan in treatment of heavy metal contaminated wastewater is forecast.

Key words：chitosan; chitosan derivative; heavy metal adsorption; wastewater treatment

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on monotropic liquid crystalline polyurethanes based on biphenylol[J]. Polymer science(Part A): Polymer Chemistry, 1995, 33: 901–913.

Research Progress of Liquid Crystal PolyurethaneWEI Wentao, SONG Wensheng, LI Di, LI Ping

(College of Chemical Engineering & Pharmaceutics, Henan University of

Science and Technology, Luoyang 471000, China)

Abstract: On the basis of brief introduction of liquid crystal polymer, the developments, structure types and synthetic methods of liquid crystal polyurethane are described in detail, and the factors affecting the liquid crystal performance of liquid crystal polyurethanes are simply analyzed.

Key words: liquid crystalline polyurethane; mesogenic unit; synthesis; influence factor

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Research Situation of High Strength Hydrogel

WANG Lanlan, ZHAO Yan

(School of Material Science and Engineering, Chongqing University of Technology, Chongqing 400054, China)　　Abstract: The research status and application of six high strength hydrogels such as nano composite hydrogel, sliding ring hydrogel, hydrophobic associating hydrogel, macromolecular microsphere composite hydrogel and tetra-PEG hydrogel, as well as dual network hydrogel are reviewed, and the development trend of the high strength hydrogel is discussed.

　　Key words: high strength hydrogel; development; application