Preparation and Evaluation of Biodegradable Polymers Derived from Woody Components

木质成分可生物降解聚合物的制备与评价

• 批准号: 07306008
• 负责人: SHIRAISHI Nobuo
• 金额: $ 12.1万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07306008/
• 关键词: cellulose acetate; ozone oxidized lignin; tannin; plasticization; biodegradable polymers; epoxy resins; polyurethane foams; blend; 反応性可塑剤; グラフト; リグニン; オゾン酸化; 熱分解ガスクロマトグラフィー

Shiraishi and Yoshioka were studied kneading reaction of cellulose acetate and acetylated wood with reactive plasticizers and simultaneous use of those and non-reactive one. They also studied the liquefaction of wood in the presence of phenol or polyhydric alcohols, its application to moldings and elucidation of liquefaction of wood. Takemura reported the studying results on compatibility of polymethyl methacrylate/cellulose blends, and studied also several blending systems of cellulose acetate and polymers. Kobayashi synthesized novel conjugates between polysaccharides and poly (L-glutamic acid), which can be degraded by proteinase. Tomita considered that biodegradable polymers can be developed from ozone oxidized lignin because the oxidized lignin takes the structure of muconic acid derivatives. Based on this idea, he did various resinification trials and succeeded in developing lignin/epoxy resins. Sakai synthesized polyurethane foams from bark tannin and succeeded in developing the … More materials with excellent physical properties and biodegradabilities. Nishida found a methodin evaluating the biodegradability of ozone oxidized lignin which Tomita prepared. He also got a proof of biodegradation of polyethylene sheets which has been considered as a non-biodegradable materials, after treatment with white rot fungi which can highly degrade lignin. The mechanical properties of the polyethylene sheet varied considerably after the fungi treatment. Shimada and Takahashi studied the biodegradability of oligoesterified cellulose acetates, which Shiraishi and Yoshioka prepared, and that of acetylated wood, and found that both of them were sufficiently biodegradable and could be considered as natural circumstance friendly materials. Kuroda used hard-woodtype dehydrogenation polymerized materials which have various syringyl to guaiacyl ratios as lignin samples and showed that changes in the chemical structure of lignin during its decay and delignification processes can be effectively pursued by a pyrolysis-gas chromatography analysis. Less

Shiraishi 和 Yoshioka 研究了醋酸纤维素和乙酰化木材与反应性增塑剂的捏合反应以及同时使用反应性增塑剂和非反应性增塑剂。他们还研究了苯酚或多元醇存在下木材的液化、其在模制品中的应用以及木材液化的阐明。 Takemura报告了聚甲基丙烯酸甲酯/纤维素共混物相容性的研究结果，并研究了醋酸纤维素与聚合物的几种共混体系。小林合成了多糖和聚（L-谷氨酸）之间的新型缀合物，该缀合物可以被蛋白酶降解。富田认为，由于氧化木质素具有粘康酸衍生物的结构，因此可以用臭氧氧化木质素开发可生物降解的聚合物。基于这个想法，他进行了各种树脂化试验，并成功开发出木质素/环氧树脂。 Sakai 以树皮单宁为原料合成聚氨酯泡沫，并成功开发出具有优异物理性能和生物降解性的材料。西田发现了一种评价富田制备的臭氧氧化木质素生物降解性的方法。他还获得了聚乙烯片材生物降解的证明，聚乙烯片材被认为是不可生物降解的材料，经过可高度降解木质素的白腐真菌处理后。经过真菌处理后，聚乙烯片材的机械性能变化很大。 Shimada和Takahashi研究了Shiraishi和Yoshioka制备的低酯化醋酸纤维素和乙酰化木材的生物降解性，发现它们都具有充分的生物降解性，可以被认为是自然环境友好的材料。 Kuroda使用具有不同紫丁香基与愈创木基比例的硬木型脱氢聚合材料作为木质素样品，并表明通过热解气相色谱分析可以有效地追踪木质素在腐烂和脱木质素过程中化学结构的变化。较少的

项目成果

M.H.Alma: "Phenolation of Wood Using Oxalic Acid as a Catalyst : Effect of Temperature and Hydrochoric Acid Addition" J.Appl.Polymer Sci.61. 675-683 (1996)

M.H.Alma：“使用草酸作为催化剂对木材进行酚化：温度和盐酸添加的影响”J.Appl.Polymer Sci.61。

D.Maldas: "Liquefaction of wood in the presence of polyol using NaOH as a catalyst and its application to polyurethane foams" International J.Polymeric Materials. 33. 61-67 (1996)

D.Maldas：“使用 NaOH 作为催化剂在多元醇存在下液化木材及其在聚氨酯泡沫中的应用”International J.Polymeric Materials。

白石信夫: "1つの木材研究" APAST. 22. 4-4 (1997)

白石伸夫：“一木研究”APAST 22. 4-4 (1997)。

L. Lin: "Physical Properties of Moldings from Liquefied Wood Resins" J. Appl. Polymer Sci.55. 1563-1571 (1995)

L. Lin：“液化木树脂模制品的物理性能”J. Appl。

N. Shiraishi: "Biodegradable Plastics" Mokuzai Gakkaishi. 41. 621-630 (1995)

N. Shiraishi：“可生物降解塑料”Mokuzai Gakkaishi。