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首页> 外文期刊>Journal of Applied Polymer Science >Polyion Complex Fiber and Capsule Formed by Self-Assembly of Poly-L-lysine and Gellan at Solution Interfaces
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Polyion Complex Fiber and Capsule Formed by Self-Assembly of Poly-L-lysine and Gellan at Solution Interfaces

机译：聚L-赖氨酸和结冷胶在溶液界面上自组装形成的聚离子复合纤维和胶囊

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摘要

Different characteristic surface structures such as capsules, regularly spaced droplets, and fibers are formed by electrostatic interaction between poly-L-lysine (PLL) and gellan gum via polyion complex (PIC) formation. Spherical droplet PIC capsules of varying diameters form in solutions. Some dyes adsorb on the surface of the capsules, and other dyes penetrate into the capsules. The strong PIC fiber can be spinnable by gravity and by wet spinning in ethanol. This fiber possesses a counterion pairing structure and exhibits the nervation/veining pattern and hollow yarn. The tensile strength of the fiber is 27.8 kg/mm2 [1.40 g/denier (d)] and the knotting strength is 9.98 kg/mm2 (1.13 g/d). By using an organic crosslinking agent, epichlorohydrin, the tensile strength can be increased to 38.5 kg/mm2 (2.46 g/d) and the knotting strength can be increased to 12.2 kg/mm2 (1.99 g/d). The PIC fiber can be dyed by five different dyeing procedures such as direct and vat dyeings. The PLL PIC fiber is water insoluble and has potential as a new synthetic polypeptide fiber technology
机译：聚L-赖氨酸（PLL）和结冷胶之间通过聚离子络合物（PIC）形成的静电相互作用形成了不同的特征性表面结构，例如胶囊，规则排列的液滴和纤维。在溶液中形成直径不同的球形液滴PIC胶囊。一些染料吸附在胶囊的表面上，而其他染料则渗透到胶囊中。坚固的PIC纤维可通过重力作用和在乙醇中的湿纺来纺丝。该纤维具有抗衡离子配对结构，并具有神经/脉络纹和中空纱。纤维的拉伸强度为27.8 kg / mm2 [1.40 g /旦尼尔（d）]，打结强度为9.98 kg / mm2（1.13 g / d）。通过使用有机交联剂表氯醇，可将抗张强度提高到38.5 kg / mm2（2.46 g / d），打结强度可以提高到12.2 kg / mm2（1.99 g / d）。 PIC纤维可以通过五种不同的染色程序进行染色，例如直接染色和还原染色。 PLL PIC纤维不溶于水，具有作为新的合成多肽纤维技术的潜力

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