Preparation of Green Nanohybrid Using Natural Nanofiller.

使用天然纳米填料制备绿色纳米杂化物。

• 批准号: 15205028
• 负责人: TAKAHARA Atsushi
• 金额: $ 32.36万
• 依托单位: KYUSHU UNIVERCITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15205028/
• 关键词: Imogolite; in situ synthesis; Biodegradable poly (urethane); Matrix polymer; Poly (lactic acid); Interface interaction; Nanohybrid; Crystallization; ナノチューブ; ゲル; ポリエチレングリコール; ナノフィラー; ポリビニルアルコール; 環境調和型

1. The hybrid of water soluble polymer poly (vinyl alcohol) [PVA] and imogolite was prepared by in situ synthesis method of imogolite. In situ synthesized imogolite could be dispersed in PVA matrix. The cast film of hybrid showed improvement of mechanical properties with highly transparency compared with homo PVA film.2. The hybrid hydrogel was prepared using imogolite and pepsin, which is an enzyme with phosphoric acid group. The immobilized pepsin was dispersed in hybrid gel uniformly without denaturalization. Moreover, the immobilized pepsin could react repeatedly after the enzyme reaction.3. The composite of poly (lactic acid) and imogolite nanofiber modified with octadecylphosphonic acid or dodecyl phosphonic acid was prepared and the mechanical property and aggregation structure of the composite were investigated. Proceeding of the poly (lactic acid) crystallization. Especially, the addition of imogolite modified with dodecylphosphonic acid was more effective to the crystallization behavior of poly (lactic acid). On the other hand, poly (lactic acid) /imogolite modified with octadecylphosphonic acid showed the good mechanical property and extension of weight degradation time at 773 K compared with poly (lactic acid).4. Biodegradable segmented poly (urethaneurea) with good mechanical property could be synthesized using the lysine-based diisocyanete, poly (caprolactone) diol and 1,4-butane diamine. Furthermore, the blend of biodegradable segmented poly (urethaneurea) and poly (lactic acid) was prepared in order to improve the brittleness of the poly (lactic acid). In the blend polymer, the phase separation of poly (urethaneurea) and poly (lactic acid) was observed.

1.采用原位合成法制备了水溶性高分子聚乙烯醇（PVA）与伊毛戈兰（Imogolite）的杂化材料。原位合成的伊毛戈兰可以分散在PVA基体中。与纯PVA膜相比，杂化PVA膜的力学性能得到改善，且具有较高的透明性.杂化水凝胶使用伊毛戈兰和胃蛋白酶制备，胃蛋白酶是具有磷酸基团的酶。固定化胃蛋白酶在杂化凝胶中分散均匀，无变性。固定化胃蛋白酶在酶反应后还可以重复反应.制备了十八烷基膦酸和十二烷基膦酸改性的聚乳酸/伊毛戈兰复合材料，研究了复合材料的力学性能和聚集态结构。聚乳酸结晶过程。特别是十二烷基膦酸改性的伊毛沸石的加入对聚乳酸的结晶行为更有效。与聚乳酸相比，十八烷基膦酸改性的聚乳酸/伊毛戈兰复合材料具有更好的力学性能，在773 K下的失重时间延长.以赖氨酸二异氰酸酯、聚己内酯二醇和1，4-丁二胺为原料合成了具有良好力学性能的可生物降解嵌段聚脲。此外，为了改善聚乳酸的脆性，制备了可生物降解的嵌段聚脲与聚乳酸的共混物。在共混聚合物中，观察到了聚脲和聚乳酸的相分离。

项目成果

Hybridization of Natural Nanofiber "Imogolite"

天然纳米纤维“伊莫缟石”的杂交

• 发表时间: 2003
• 期刊: Kogyo Zairyo vol.51, No.9
• 作者: A.Takahara;H.Otsuka;K.Yamamoto;S.-I.Wada
• 通讯作者: S.-I.Wada

第13章 イモゴライトナノチューブ,環状・筒状超分子新素材の応用技術

第十三章 伊缟石纳米管新型圆形、圆柱形超分子材料应用技术

• 发表时间: 2006
• 作者: 高原淳;井上望
• 通讯作者: 井上望

Characterization of novel biodegradable segmented polyurethanes prepared from amino-acid based diisocyanate

由氨基酸二异氰酸酯制备的新型可生物降解嵌段聚氨酯的表征

• 发表时间: 2005
• 期刊: Macromolecular Symposia 224(Bio-Based Polymers)
• 作者: A. Takahara;M. Hadano;T. Yamaguchi;H. Otsuka;S. Kidoaki;T. Matsuda*
• 通讯作者: T. Matsuda*

高原 淳, 山本和弥, 和田信一郎: "天然無機ナノファイバー「イモゴライト」in「ナノファイバーテクノロジーを用いた高度産業発掘戦略」"CMC(印刷中). (2004)

Jun Takahara、Kazuya Yamamoto、Shinichiro Wada：“‘利用纳米纤维技术的先进工业发现策略’中的天然无机纳米纤维‘伊毛缟石’”CMC（2004 年出版）。

Characterization and Degradation Behavior of Segmented Poly(urethaneurea)s Prepared from Amino-acid Based Diisocyanate

氨基酸二异氰酸酯制备的嵌段聚氨基甲酸酯脲的表征及降解行为

• 发表时间: 2006
• 期刊: 日本ゴム協会誌 79
• 作者: M.Hadano;T.Yamaguchi;H.Otsuka;K.Aoi;S.Sasaki;A.Takahara
• 通讯作者: A.Takahara