Biobased Aliphatic Polyesters with DOPO Substituents for Enhanced Flame Retardancy
Citations Over TimeTop 19% of 2015 papers
Abstract
Linear aliphatic copolyesters consisting of the biobased diols ethylene glycol, 1,3‐propane diol, and 1,4‐butane diol, the biobased dicarboxylic acids succinic acid, adipic acid, and sebacic acid, and a 9,10‐dihydro‐9‐oxa‐10‐phospha‐phenanthren‐10‐oxide (DOPO)‐containing diol or dicarboxylic acid are presented. Structural characteristics of the new copolyesters are studied by 1 H and 13 C NMR spectroscopy. The influence of chemical composition on the property profile is examined evaluating glass transition temperature T g , melting behavior, thermal degradation and combustion, mechanical and burning behavior. Incorporation of DOPO monomers suppresses crystallization and yields materials with reduced toughness except in case of sebacates. T g rises with the content of DOPO monomer. Correlations between the number of methylene groups in the repeating unit and the thermogravimetric analysis degradation maximum, as well as the heat release capacity from pyrolysis combustion flow calorimeter reflect the systematic influence of chemical structure. Copolycondensation with DOPO monomers enhances the limiting oxygen index providing materials with improved overall value. image
Related Papers
- → Activation capability of water soluble organic substances as CCN(2003)136 cited
- → Synthesis of aliphatic polyesters by polycondensation using inorganic acid as catalyst(2009)41 cited
- → Phase diagram of a system of adipic, glutaric, and sebacic acids(2016)12 cited
- → Determination and Correlation of Solubilities for Succinic Acid in the Adipic Acid + Glutaric Acid + Acetone Mixture and Adipic Acid in the Succinic Acid + Glutaric Acid + Acetone Mixture(2016)12 cited
- → Pattern of aliphatic dicarboxylic acids in uremic serum including a new organic acid, 2,4-dimethyladipic acid(1979)42 cited