Biopolymers Conference

Bioplastics and Biopolymers It’s not easy to answer the question of What are Bioplastics? The definition of “bioplastics” is not definitive or universal because not everyone agrees on the definition. here are two attributes related to the word bioplastics. We could say that bioplastics could be divided into two pillars: bio-based and bio-sourced or biodegradable and compostable The Oxford Dictionary defines “bioplastics” as a type of biodegradable plastic derived from biological substances rather than petroleum. This is what we call “bio-based”. The “bio” refers to biological.  

  Using bacteria to replace plastics derived from fossil oil This is achieved by bacteria called Ralstonia eutropha or Cupriavidus necator, also known as oxyhydrogen bacteria. We let them sweat away for us, Riedel jokes. We place them in a mineral salt solution and feed them with nitrogen, phosphorous, oxygen and carbon. The carbon is added in the form of waste fats. Then we let the bacteria grow. After a certain time, we remove the nitrogen from the bacteria. They react to this deficiency by storing the now excess carbon in the waste fat as an energy reserve in their cells and converting it into PHAs.

Deep Polymers rallies 9% as firm forays into biodegradable polymers In a regulatory filing, the smallcap speciality chemical player announced that it will be entering into biodegradable polymers to reduce wastage and global warming. The government's recent action to ban the use of single-use plastic has increased the demand for biodegradable plastics, the filing on the exchanges added. 

  Synthesis and characterization of biopolyurethane crosslinked with castor oil-based hyperbranched polyols as polymeric solid–solid phase change materials Novel crosslinking bio polyurethane based polymeric solid–solid phase change materials (SSPCM) were synthesized using castor oil (CO) based hyperbranched polyols as crosslinkers. CO-based hyperbranched polyols were synthesized by grafting 1-mercaptoethanol or α–thioglycerol via a thiol-ene click reaction method (coded as COM and COT, respectively). Subsequently, the three SSPCMs were synthesized by a two-step prepolymer method. Polyethylene glycol was used as the phase change material in the SSPCMs, while the CO-based hyperbranched polyols and two types of diisocyanate (hexamethylene diisocyanate (HDI) and 4,4'-diphenylmethane diisocyanate) served as the molecular frameworks. Fourier transform infrared spectroscopy indicated the successful synthesis of the SSPCMs. The solid–solid transition of the prepared SSPCMs was confirmed b...