Biobased Janus molecule for the facile preparation of water solutions of few layer graphene sheets
作者:Maurizio Galimberti、Vincenzina Barbera、Silvia Guerra、Lucia Conzatti、Chiara Castiglioni、Luigi Brambilla、Andrea Serafini
DOI:10.1039/c5ra11387c
日期:——
graphene. The Janus molecule was 2-(2,5-dimethyl-1H-pyrrol-1-yl)-1,3-propanediol (serinol pyrrole, SP), a serinol derivative obtained through the neat reaction of 2-amino-1,3-propandiol with 2,5-hexanedione, with atom efficiency of about 85%. SP contains the pyrrole ring, suitable for the interaction with carbon allotropes and hydroxy groups, that can easily interact with polar surroundings. Adducts, with
一种基于生物的Janus分子用于制备由几层石墨烯制成的纳米堆叠的水溶液。的詹纳斯分子是2-(2,5-二甲基- 1 H ^ -吡咯-1-基)-1,3-丙二醇(丝氨醇吡咯,SP),通过2-氨基- 1的整齐反应得到的丝氨醇衍生物, 3-丙二醇与2,5-己二酮的原子效率约为85%。SP含有吡咯环,适合与碳同素异形体和羟基相互作用,可以轻松与极性环境相互作用。通过使SP反应来制备具有约14质量%的SP的加合物。具有高表面积的纳米级石墨(HSAG),并在晶域中堆叠了约35个石墨烯层。采用了绿色方法,例如球磨(HSAG- SP -M)和加热。红外光谱揭示了由于HSAG和SP引起的峰以及可能归因于加合物的其他峰。如X射线衍射图所示,热反应和机械反应都基本上没有改变石墨层的顺序和层间距离。拉曼光谱中G和D谱带的相对强度并未因热反应而改变,而球磨后观察到了D峰的增强。制备的HSAG– SP -M稳定水溶液的浓度范围为0