The disclosure relates to biomass-based polyester materials; methods of making biomass-based polyester materials; polyester compositions comprising the disclosed biomass-based polyester materials; polymer compositions comprising the biomass-based polyester materials and one or more additional polymer, including a conventional or non-biomass-based polymer; and articles comprising the disclosed biomass-based polyester materials or disclosed polymer compositions comprising a disclosed biomass-based polyester materials.

The present invention provides a polyester polymer that is effective in hair straightening and that is biodegradable. It also provides a method for synthesizing such a polyester polymer.

The present invention provides a polyester polymer that is effective in hair straightening and that is biodegradable. It also provides a method for synthesizing such a polyester polymer.