Synthesis of Crystalline and Amphiphilic Polymers from d -Glucaric Acid
| Autor: | Hisaharu Masaki, Tadahisa Iwata, Wu Yuxin, Yukiko Enomoto-Rogers |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Aldaric acid
Renewable Energy Sustainability and the Environment General Chemical Engineering Sulfuric acid 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Glucaric Acid Interfacial polymerization Dimethylacetamide 0104 chemical sciences Polyester chemistry.chemical_compound Acetic anhydride chemistry Diamine Polymer chemistry Environmental Chemistry Organic chemistry 0210 nano-technology |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 4:3812-3819 |
| ISSN: | 2168-0485 |
| Popis: | d-Glucaric acid (GA), an aldaric acid isolated from various vegetables and fruits, is an important biobased building block. Glucaric acid acetate (GAA), which is acyclic, was synthesized in an acetic anhydride/sulfuric acid mixture. GAA was converted to glucaric acid chloride acetate (GACA) and then polymerized with various diols and diamines in dimethylacetamide solution or by interfacial polymerization in water and chloroform solutions. The polyesters and polyamides were amphiphilic and soluble in water and common organic solvents. The weight-average molecular weights of the polyesters were (0.4–0.7) × 103; those of the polyamides obtained by solution and interfacial polymerizations were (5.9–8.0) × 103 and (14.5–20.8) × 103, respectively. Differential scanning calorimetry showed that the polyamides were thermoplastic and melted at ca. 140 °C, indicating crystallinity; the melting points increased with increasing number of diamine alkyl carbons. Novel biobased crystalline amphiphilic polymers were synth... |
| Databáze: | OpenAIRE |
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