Preparation of Green Nanohybrid Using Natural Nanofiller.

1.采用分子筛原位合成法制备了水溶性聚合物聚乙烯醇[PVA]与分子筛的杂化材料。原位合成的拟沸石可以分散在PVA基质中。结果表明：1.与纯PVA膜相比，杂化膜的力学性能有所提高，具有较高的透明性。以含磷酸基团的胃酶和拟沸石为原料制备了杂化水凝胶。固定化胃酶在杂化凝胶中分散均匀，无变性。此外，固定化胃酶在酶反应后可以重复反应。制备了十八烷基膦酸改性聚乳酸/仿沸石纳米纤维复合材料，并研究了复合材料的力学性能和聚集态结构。聚乳酸结晶的研究进展。尤其是十二烷基膦酸改性拟沸石的加入，对聚乳酸的结晶行为更为有效。另一方面，与聚乳酸相比，十八烷基膦酸改性聚乳酸/蒙脱石在773K下表现出较好的力学性能和较长的降解时间。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链段聚氨基甲酸酯。此外，为了改善聚乳酸的脆性，制备了可生物降解的嵌段聚氨基甲酸酯/聚乳酸共混物。在共混聚合物中，观察到了聚氨基甲酸乙酯和聚乳酸的相分离。

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.