Copolyester Synthesis Using Glycerol from Biodiesel Production

被引：0

作者：

Miri, Massoud J. ^{[1
]}

Nori, Keelyn E. ^{[1
]}

Andrew, Rebecca M. ^{[1
]}

Ge, Changfeng

机构：

[1] Rochester Inst Technol, Dept Chem, Rochester, NY 14623 USA

来源：

RENEWABLE AND SUSTAINABLE POLYMERS | 2011年 / 1063卷

关键词：

MOLECULAR-SIZE DISTRIBUTION; CRUDE GLYCEROL; ACID; SPECTRA; 1,3-PROPANEDIOL; POLYESTERS; POLYMERS; GELATION;

D O I：

暂无

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Copolyesters were produced with semi-purified biodiesel based glycerol and either sebacic acid or dodecanedioic acid as comonomer. The biodiesel based glycerol was purified by an inexpensive method involving neutralization with hydrochloric acid, the removal of soap by centrifugation, and the removal of methanol and water by distillation. To avoid gel formation, the polyesterifications were conducted at two stoichiometric glycerol/acid-ratios, 1:2 and 2:1, and run to relatively low conversions. Reagent grade glycerol was used in control runs. Polymerizations were conducted in bulk using dibutyl-tin(IV)oxide as a catalyst at 150 degrees C. The effect of the biodiesel based glycerol on the conversion, degree of branching, and molecular weight is described. The copolyesters were characterized by IR, H-1 NMR, C-13 NMR, GPC, DSC, TGA and solvent extraction.

引用

页码：11 / 35

页数：25

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