| |
Structure and photoluminescence evolution of nanodots during pyrolysis of citric acid: From molecular nanocluster to carbogenic nanoparticles
柠檬酸基碳纳米点由于其强光致发光（PL）而越来越多地作为新型荧光纳米材料。然而，仍然缺乏碳纳米点形成的精确图像和明确的结构-性质之间的关系。在不同温度下对柠檬酸/β-胺复合物进行热解，分析化学结构与“点”形态的关系，对碳纳米点的形成机制进行了系统的研究。动态流变学研究表明纳米点的黏弹性具有强烈的热解温度依赖性。原子力显微镜、透射电子显微镜和拉曼光谱表明不同热解温度下合成的“点”在本质上是不同的：热解...
http://www.polymer.cn//ss/zhangwenkai/publicationsshow_12529.html |
| |
Supramolecular nanodots derived from citric acid and beta-amines with high quantum yield and sensitive photoluminescence
超分子纳米点在稀溶液中具有激发波长非依赖发光性质，但在浓溶液却表现出红移、抑制和非同寻常的激发波长依赖性发光特性。此外，超分子纳米点在各种环境条件下都具有高度敏感发光特性：在低pH和高pH条件下发光减弱；由于丰富的极性基团，斯托克斯位移与溶剂极性参数ET(30)呈现线性相关；能够选择性的被Fe3+猝灭，荧光猝灭值与Fe3+浓度在10-85 μM区间有良好的线性关系。这类新型超分子纳米点与纤维素构筑的蓝色发光水凝胶具有较...
http://www.polymer.cn//ss/zhangwenkai/publicationsshow_12528.html |
| |
Supramolecular interactions via hydrogen bonding contributing to citric-acid derived carbon dots with high quantum yield and sensitive photoluminescence
鉴于碳纳米点的复杂性、异质性，依照柠檬酸基碳点合成的常规路线，本文将柠檬酸（CA）与一系列β-胺在180
°C水热反应，结果得到高亮和敏感发光的非晶态柠檬酸基碳纳米点（CACDs）。使用凝胶渗透色谱净化系统纯化后，通过液相色谱和高分辨率傅里叶变换离子回旋共振质谱法表征了CACDs的复杂化学结构。发现在水热缩合反应中能够有效产生五元氮杂环并2-吡啶酮化合物。 M06-2X密度泛函计算、表面张力和形态学研究表明，2-吡啶酮化...
http://www.polymer.cn//ss/zhangwenkai/publicationsshow_12527.html |
| |
Intercalation of phosphotungstic acid into layered double hydroxides by reconstruction method and its application in intumescent flame retardant) composites.
Intercalation of phosphotungstic acid into layered double hydroxides by
reconstruction method and its application in intumescent flame retardant
poly (lactic acid) composites
http://www.polymer.cn//ss/zhangshengfrml/publicationsshow_12453.html |
| |
Flammability and thermal degradation of poly (lactic acid)/polycarbonate alloys containing a phosphazene derivative and trisilanollsobutyl POSS
This work reports our recent efforts on improving the flame retardancy and thermal stability of biodegradable poly (lactic acid) (PLA) which is usually produced from corn and sugar beets. Hexa-(phosphaphenanthrene-methyl-(p-hydrobenzal)-amino-phenoxyl)-cyclotriphosphazene (HPHAPC) was synthesized by the classic Kabachnik-Fields reaction, and was then incorporated into PLA/polycarbonate (PC) alloys...
http://www.polymer.cn//ss/zhangshengfrml/publicationsshow_12440.html |
| |
Flame retardancy and thermal and mechanical performance of intercalated, layered double hydroxide composites of polyamide 11, aluminum phosphinate and sulfamic acid
1
http://www.polymer.cn//ss/zhangshengfrml/publicationsshow_12404.html |
| |
The fire performance of polylactic acid containing a novel intumescent flame retardant and intercalated layered double hydroxides
。
http://www.polymer.cn//ss/zhangshengfrml/publicationsshow_12402.html |
| |
Thiol Reactive Maleimido-Containing Tannic Acid for the Bioinspired Surface Anchoring and Post-Functionalization of Antifouling Coatings
Inspired by tea stains, a new surface anchor, maleimido-containing tannic acid (TAMA), was developed to introduce the maleimido functionality onto stainless steel (SS) surfaces. The feasibility of maleimido groups to serve as anchoring sites for surface functionalization via Michael addition was explored in a model experiment using thiol-containing 1H,1H,2H,2H-perfluorodecanethiol. The surface con...
http://www.polymer.cn//ss/xulq/publicationsshow_12368.html |
| |
Enhanced mechanical properties and flame retardancy of short jute fiber/poly(lactic acid) composites with phosphorus-based compound
In this work, a phosphorous-based compound (DOPO-ICN) was obtained by a two-step process. 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) reacted with formaldehyde firstly, followed with reacting with 1,6-hexane diisocyanate (HDI). The chemical structure of DOPO-ICN was confirmed by Fourier transform infrared spectroscopy (FTIR) and 1H NMR. The influence of DOPO-ICN on the mechanical a...
http://www.polymer.cn//ss/taoyu/publicationsshow_12352.html |
| |
Synthesis of Aromatic Polyesters with Pendent Carboxyl Groups from Diphenolic Acid, Bisphenol a and Isophthaloyl Chloride by Interfacial Polycondensation
Aromatic polyesters bearing pendent carboxyl functionalities were prepared by interfacial polycondensation of diphenolic acid, bisphenol A and isophthaloyl chloride with tetrabutylammonium chloride as phase transfer catalyst. The copolyester composition was confirmed with HPLC analysis. The polymerization process and composition of the copolyesters were examined by consid...
http://www.polymer.cn//ss/wulinbo/publicationsshow_12208.html |
| |