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セルロ-スを基質とする機能性高分子の開発

以纤维素为基材的功能性聚合物的开发

基本信息

批准号：
01880016
负责人：
YAGI Tatsuhiko
金额：
$ 4.1万
依托单位：
Shizuoka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B).
财政年份：
1989
资助国家：
日本
起止时间：
1989 至 1990
项目状态：
已结题

项目摘要

1. Sawatari and Yagi succeeded in preparing cellulose covalently bound with amines including biomolecules under mild conditions, and applied for a patent. By this technique, allyl-cellulose was prepared, and converted to 2, 3-dibromopropyl-cellulose. Upon mixing this intermediate with various amines at 37^OC, Covalently modified cellulose derivatives were produced. The derivatives prepared by this technique includes : 3-hexylamino--bromopropyl-, 3- (6-aminohexylamino) -2-bromopropyl-, 3- (4-sulfanilino) -2-bromopropyl-celluloses, cytochrome c_3-cellulose, etc. Thiol compounds could be bound to the cellulose at 100^OC. Some of these derivatives have specific affinity for copper ions and ionic dyes, ion exchange capacity, and resistance to cellulase. The cytochrome c2-cellulose has biochemical reactivity of transferring electrons to protons to produce hydrogen gas by the catalytic action of hydrogenase.2. Sawatari determined the changes in crystallinity, molecular orientation, and Young's modulus during the transformation of cellulose I to cellulose II, which is the necessary step to derivatize cellulose.3. Suzuki evaluated the effect of gamma irradiation on sheet properties of different pulp sheets enriched with polyacrylamide and polyamidepolyamineepichlorohydrin.4. Okada studied the productivity of cellulose, and production of cello-oligosaccharides from cellulose, and prepared gentioーoligosaccharides as functional food materials.5. Itagaki studied the mechanism of dehydration of cellulose in sulfuric acid by means of photo-physical techniques, and observed the formation of aromatics during the dehydration of mercerized cellulose.The above mentioned results were important in considering further development to functionalize celluloses.

1. Sawatari和Yagi成功地在温和的条件下制备了与包括生物分子在内的胺共价结合的纤维素，并申请了专利。通过该技术制备了烯丙基纤维素，并将其转化为2，3-二溴丙基纤维素。在37 ° C下将该中间体与各种胺混合后，产生钴改性的纤维素衍生物。用此技术制备的衍生物包括：3-己氨基-溴丙基纤维素、3-（6-氨基己氨基）-2-溴丙基纤维素、3-（4-磺胺基）-2-溴丙基纤维素、细胞色素c_3-纤维素等。这些衍生物中的一些对铜离子和离子染料具有特异性亲和力、离子交换能力和对纤维素酶的抗性。细胞色素c2-纤维素具有通过氢化酶的催化作用将电子转移到质子产生氢气的生化反应性. Sawatari测定了纤维素I向纤维素II转化过程中结晶度、分子取向和杨氏模量的变化，这是纤维素衍生化的必要步骤。3. Suzuki评价了γ辐照对不同的富含聚丙烯酰胺和聚酰胺-聚胺-表氯醇的浆板的纸张性能的影响.冈田研究了纤维素的生产能力，以及从纤维素生产纤维低聚糖，并将龙胆低聚糖制备为功能性食品原料.板垣光物理技术研究了纤维素在硫酸中脱水的机理，并观察了丝光纤维素脱水过程中芳烃的形成，上述结果对考虑进一步开发纤维素功能化具有重要意义。