C-6羧基氧化纤维素是一种具有广泛应用的新型功能材料，其高效制备方法研究和潜在应用探索备受人们关注。本项目围绕高效新型选择性氧化体系构建，开展木材纤维素选择性氧化反应体系基础研究，探索有机硝酰自由基结构、共氧化剂和反应介质对氧化反应选择性、氧化效率、对纤维素的降解性的影响，阐述反应的构效关系，分析影响机理。研究表征C-6羧基氧化纤维素的化学分子及形态结构。通过阳离子交换的方法制备金属离子络合C-6羧基氧化纤维素纤维新材料，研究该新材料的结构与性能的关系，以及金属离子对新材料性能的影响。研究表征该纤维素新材料阻燃性能和燃烧性能，采用综合技术方法研究金属离子络合C-6羧基氧化纤维素的热降解机理、残余炭结构，以及炭的生成机理，阐述该材料自阻燃机理。为新的高效的选择性氧化纤维素体系的设计和研究，探索C-6羧基氧化纤维素新的潜在的应用提供科学的数据。

C-6 carboxyl oxidized cellulose is a new type of functional material with wide application. Its efficient preparation method research and potential application have been concerned. In this project, for building efficient new selective oxidation system, the basic research of wood cellulose selective oxidation reactions is carried out, including exploring the influence of the organic nitroxyl radical structure, cooxidants and reaction medium on the oxidation reaction selectivity, oxidation efficiency, cellulose degradation, expatiating structure-activity relationship of this reaction, analyzing the mechanisms. The chemical and morphological structure characterizations of C-6 carboxyl oxidized cellulose are investigated. A novel material, called as metal ion complexing C-6 carboxyl oxidized cellulose fiber, is prepared through the metal ion exchange process. The relationship between the structure and properties of the novel material and the influence of metal ions on the performance of the novel material are studied in detail. Flame retardancy and flammability of the novel are characterized. By using comprehensive method the thermal degradation mechanism, residual char structure and char forming mechanism of metal ion complexing C-6 carboxyl oxidized cellulose are investigated, and the flame retardant mechanism will be expatiated. For the design and study of a new efficient selective oxidation system, and the exploration of potential new applications of C-6 carboxyl oxidation cellulose, scientific data will be offered.