Precise synthesis of cellulosicblock copolymers with novel functions based on the irsupramolecular structure

我们在这项研究中表明，含有三醋酸纤维素或甲基纤维素的纤维素嵌段共聚物的学术重要性，以了解他们的结构与性能的关系。我们关于CTA的合成策略使我们能够通过CTA衍生物排列金纳米颗粒，并根据CTA分子的长度控制颗粒间的距离。在还原端具有芘基团的纤维素自组装形成具有单层纤维素衍生物的纳米颗粒。此外，我们还合成了具有区域选择性功能化模式的二嵌段甲基纤维素衍生物。这些衍生物使我们能够发现，由纤维二糖基嵌段和大约。10个2，3，6-三-O-甲基-吡喃葡萄糖基单元对甲基纤维素的热可逆凝胶化至关重要。

We demonstrated in this study that cellulosic block copolymers containing cellulose triacetate or methylcellulose were of academic importance to understand their structure-property relationships. Our synthetic strategy regarding CTA enabled us to align gold nanoparticles by CTA derivatives and to control interparticle distances depending on the length of CTA molecules. Cellulose having pyrene group at the reducing-end self-assembled to form nanoparticles with a single layer of the cellulose derivative. Moreover, we have synthesized diblock methylcellulose derivatives with regioselective functionalization patterns. These derivatives permitted us to find that the diblock structure consisting of cellobiosyl block and approx. ten 2, 3, 6-tri-O-methyl-glucopyranosylunits was of crucial importance for thermoreversible gelationof methylcellulose.