| abstract |
The invention relates to a method for obtaining biodegradable polymers, which comprises a step of performing esterification and/or transesterification and/or amidiation, a step of performing pre-polycondensation, a step of performing polycondensation, a step of extracting and a step of drying, thereby dispensing with the use of chain extenders. The main advantage of the method is that the polymer thus obtained can be produced in the entire desired range of viscosities and with an improved colour in comparison with polymers obtained by means of other methods using chain extenders, all with a method that is more efficient, more ecological, cleaner and safer for the operator. |