α-天使内酯聚合热力学

Cogent Chemistry Pub Date : 2018-01-01 DOI:10.1080/23312009.2018.1443689

K. L. Kaygorodov, V. Tarabanko, N. Tarabanko

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引用次数: 6

摘要

摘要采用量热法研究了丁氧化钠催化α-angelicalactone(一种五元不饱和内酯)聚合的热力学。得到了分子量为2500 g/mol、C-O / C-C单体间键比为87-13%的聚合物;聚合反应的表征值分别为= - 33.41 kJ/mol、= - 42.69 J/(mol∙K)和= - 20.68 kJ/mol。这种聚合物和类似的聚合物和共聚物是可生物降解的，可以从商业上可用的绿色生物平台原料:可再生碳水化合物和乙酰丙酸生产。

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Thermodynamics of α-angelicalactone polymerization

Abstract Thermodynamics of sodium butoxide-catalyzed polymerization of α-angelicalactone (a five-member unsaturated lactone) is studied by calorimetric methods. A polymer with Mw = 2,500 g/mol and the ratio of C–O to C–C inter-monomeric bonds 87–13% is obtained; this polymerization is characterized by the values of = −33.41 kJ/mol, = −42.69 J/(mol∙K) and = −20.68 kJ/mol. This and similar polymers and copolymers are biodegradable and can be produced from commercially available green bio-platform feedstock: renewable carbohydrates and levulinic acid.

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Cogent Chemistry CHEMISTRY, MULTIDISCIPLINARY-

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