An environmentally sustainable isosorbide-based plasticizer for biodegradable poly(butylene succinate)

Abstract

In this article, isosorbide divalerate (SDV), an alternative renewable resource plasticizer for degradable poly(butylene succinate) (PBS) was successfully synthesized with isosorbide and valeric acid, and was characterized by Fourier transform infrared (FTIR). The mechanical properties, glass transition temperature (T g ), crystallization properties, rheological behavior of PBS/SDV blends was studied in detail. The results showed that incorporation of SDV had successfully reduced T g of the PBS composites, particularly at 20 wt% SDV, where the value of T g exhibited a reduction of 12 °C or 39% compared to pure PBS, demonstrating SDV possessed plasticizing efficacy. The crystallinity of PBS was declined by presence of SDV in the blends, and the incorporation of 20 wt% SDV into PBS matrix promoted an impressive decrease of exceeding 22%. Significant enhancement of the toughness and flexibility of PBS was achieved by the addition of SDV. The rheological test revealed that the decrease of modulus and viscosity improved the processing properties of the materials, which broadened the PBS applications. Altogether the SEM showed the fracture surface of the composites undergoes a brittle-tough transition with increasing SDV content below 12% content, meanwhile, significant phase separation was observed in the composites with high content of SDV.

An Eco-friendly Sustainable Plasticizer from Isosorbide and Nonanoic Acid: Synthesis and Application

“…Yang Yong et al have done extensive work on tapping isosorbide based plasticizers, validating their performance to be comparable to petroleum derived terephthalate based plasticizers, and nd that with the addition of equal amounts of plasticizers, as the alkyl chain lengths on both sides of the isosorbide base decrease, increasing the plasticizing ability but more prone to volatilization from the PVC [38][39][40]. Previously, our group has successfully synthesized isosorbide dipivalate (SDV)to plasticize PBS, resulting in improved toughness and better processability, and we have also synthesized isosorbide dinonylate (SDN) to plasticize PVC, further verifying its potential to replace traditional o-phenyl plasticizers [41,42].…”

Fabrication and Properties of Biodegradable Poly (butylene succinate) Composites by Regulating the Dispersed Oyster Shell Powder with the Silane Coupling Agent

“…However, large amounts of discarded petroleum-based polymers have caused grave and irreparable environmental problems, and nano plastic or microplastic is ubiquitous on the planet, seriously jeopardizing the sustainability of our natural resources [7][8][9] . Therefore, biodegradable polymers have been established as one of the most pragmatic and sustainable solutions to address this epidemic, while retaining greater value in attractive characteristics such as disposability, sustainability, recyclability, environmental friendliness and, most importantly, biodegradability [1,[10][11][12] . A survey indicates that worldwide production of degradable polymers has surpassed 2 million metric tons and is anticipated to approach 3 million metric tons by 2024 [6] .…”

Phosphorus Containing Rubber Seed oil as a Flame Retardant Plasticizer for Polyvinyl Chloride

“…Bio-based plasticizers specially used in the fields of medicine or health equipment, packaging, as well as environmentally friendly plasticizers with enhanced mechanical properties have been continuously developed [4][5][6][7][8]. Many bio-based plasticizers have been reported including isosorbide [9], cardanol [10][11][12], castor oil [13][14][15], lactic acid [16,17], and many kinds of vegetable oils [18][19][20].…”