Ye, Shuxian published the artcileNonisocyanate CO2-Based Poly(ester-co-urethane)s with Tunable Performances: A Potential Alternative to Improve the Biodegradability of PBAT, Safety of Dimethyl adipate, the publication is ACS Sustainable Chemistry & Engineering (2020), 8(4), 1923-1932, database is CAplus.
The objective of this study is to develop a nonisocyanate route to prepare a biodegradable CO2-based poly(ester-co-urethane) (PEU), which has some improved performances when compared with com. poly(butylene adipate-co-terephthalate) (PBAT). These performances include mech. properties, biodegradability, and melt processability. Specifically, five bis-alkylcarbamates were synthesized from diamines, methanol, and CO2. Subsequently, 1,4-butanediol (BDO) and di-Me terephthalate (DMT) reacted with five kinds of CO2-based bis-alkylcarbamates to study the influence of methylene group number on the performances of PEUs. Moreover, the effect of various ratios of aromatic to aliphatic blocks in PEUs on their properties was systematically investigated. Addnl., the hydrolytic stability of synthesized PEUs was evaluated upon the degradation percentage in phosphate-buffered saline. The semicrystalline PEUs with tunable properties exhibit an initial thermal decomposition temperature of over 273.7°C and a Tg above 12.4°C. Due to the presence of hydrogen bonding, the tensile strength is as high as 49 MPa. The designed and synthesized PEUs are promising as a potential biodegradable thermoplastic with superior performances when compared with com. PBAT. A novel high-performance polymer like biodegradable PBAT was synthesized via a green and efficient copolymerization from CO2-based bis-alkycarbamate.
ACS Sustainable Chemistry & Engineering published new progress about 627-93-0. 627-93-0 belongs to esters-buliding-blocks, auxiliary class Ploymers, name is Dimethyl adipate, and the molecular formula is C15H14O3, Safety of Dimethyl adipate.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics