New Synthetic Routes to Cellulosic Graft Copolymers

纤维素接枝共聚物的新合成路线

• 批准号: 8502498
• 负责人: Ramani Narayan
• 金额: $ 13万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-05-15 至 1988-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8502498&HistoricalAwards=false
• 关键词: New; Synthetic; Routes; Cellulosic; Graft

Biopolymers such as cellulose, starch, and proteins are available in large quantities and can be processed into high purity products at modest costs. However, biopolymers have been largely neglected in modern research for potential applications in polymeric materials. The grafting of synthetic polymers to natural polymers from renewable resources should lead to new classes of materials with specific and interesting properties. Nearly all of the approaches described in the literature for grafting onto cellulose and other renewable materials have involved free radical polymerization methods. An analysis of the graft copolymer reveals a very low level of graft substitution, involving only a few high molecular weight grafts. A new synthetic approach to cellulosic graft copolymers based on the anionic polymerization has been described which may overcome the problems of the free radical graft cellulosics-polymers might open up new avenues to prepare a new generation of cellulose-based super-adsorbents, composites, biodegradable plastics, and other cellulose-based products.

生物聚合物，如纤维素、淀粉和蛋白质，可在 可加工成高纯度的产品， 成本适中。 然而，生物聚合物在很大程度上被忽视， 现代研究在聚合物材料中的潜在应用。 的 将合成聚合物接枝到来自可再生材料的天然聚合物上 资源应该导致新的材料类别， 有趣的属性。 中描述的几乎所有方法 接枝到纤维素和其它可再生材料上的文献 涉及自由基聚合方法。 的分析 接枝共聚物显示出非常低水平的接枝取代， 仅涉及少量高分子量接枝物。 一种新的合成 基于阴离子表面活性剂的纤维素接枝共聚物 已经描述了可以克服以下问题的聚合 自由基接枝纤维素聚合物可能开辟新途径 为了制备新一代的纤维素基超吸附剂， 复合材料、生物降解塑料和其他纤维素基产品。