Polybutylene adipate/terephthalate PBAT

Polybutylene adipate/terephthalate (PBAT) from BASF and IRe Chemical... 

Among the aliphatic and aromatic polyesters and their copolymers, PBS, PBSA, poly(butylene adipate-co-terephthalate) (PBAT), polybutylene adipate/terephthalate (PBAT), and PTMAT are the most known polymers. Some of these polymers such as PBS have been largely used as a matrix to bionanocomposites with a variety of reinforcements [87]. For example. Table 11.3 lists some of the modified days used to prepare PBS-based bionanocomposites via solvent and melt intercalation and master batch formation [87]. 

The matrix is a biodegradable and aromatic copolyester (polybutylene adipate-co-terephthalate, PBAT), from Eastman (EASTAR BIO Ultra Copolyester 14766). Copolyester chemical structure is given in Table 17.2. This copolyester is soluble at room temperature in different solvents such as THF, CH2CI2, or CHCI3. Determined by HNMR, PBAT composition is 43% of butylene terephthalate and 57% of butylene adipate. Determined by size exclusion chromatography (SEC), molecular weight (Mw) and polydispersity index (IP) are 48,000 and 2.4, respectively. Melt flow index (MFI) is 13 g/10 min at 190°C/2.16 Kg. PBAT density is 1.27 g/cm at 23°C. 

Biodegradable composites of PBAT (polybutylene adipate-co-terephthalate) with bamboo flour, cryofracture surfaces [4] ... 

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