Plasticizers: Synthesis of phthalate esters via FeCl3
Plasticizers are extensively used in manufacturing of plastic materials, textiles, paints, cosmetics, etc. Phthalate esters are used to prepare in harsh conditions, at a higher reaction temperature. FeCl 3-catalyzed esterification of alcohols with phthalic anhydride affords phthalate esters, under mild conditions.
Synthesis of novel plasticizer ester end-capped oligomeric
Furthermore, compared with ATBC and DOTP, EOLs showed better migration resistance in the leaching test. All test results showed that the comprehensive performance of EOLs was better than those of commercial green plasticizers ATBC and DOTP, which provided a new method for the development of novel green plasticizers.
Fully Renewable, Effective, and Highly Biodegradable
The plasticizer effectiveness of DHPS in poly (vinyl chloride) (PVC) demonstrated similar or better plasticizing properties (glass transition temperature, tensile and rheological properties) than...
Distribution of phthalate esters in Egyptian edible oil
The method observed a good repeatability results with relative standard deviation (RSD) less than 10 %. The method reported an excellent accuracy confirmed with proficiency test material and the...
US2778849A - Purification of plasticizer esters - Google Patents
ester esters hundred steam temperature Prior art date 1953-09-25 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US382476A Inventor Ackelsberg Oscar
- Is liquefied wood flour ester a good plasticizer?
- The liquefied wood flour ester (PWF) showed good miscibility with PLA and good plasticization efficiency as shown by differential scanning calorimetry (DSC) and tensile testing. Tensile strain at break increased from a few percent for pure PLA to over 100 and 300% for the materials containing 10 and 30 wt-% of PWF.
- Which plasticizer has the best mechanical properties?
- Of the plasticizers we synthesized, the best film mechanical properties were provided by OC plasticizer, containing primarily propylene glycol monoacetate, but also propylene glycol diacetate, acetic acid and propylene glycol in its mixture.
- What are alternative plasticizers?
- Alternative plasticizers are still being sought, including oils such as palm oil (Hasan et al., 2020), rosehip seed oil (Darie-Niță et al., 2021), epoxidized chia seed oil (Dominguez-Candela et al., 2021), epoxidized soybean oil (Alhanish & Abu Ghalia, 2021) olive oil or corn oil ( Giannakas et al., 2017) and fatty acids ( Srinivasa et al., 2007 ).
- How is oleic acid and propylene glycol used in plasticizer synthesis?
- In the first synthesis step for both plasticizers, mono- and diesters of oleic acid and propylene glycol were obtained. In the second step, succinic acid was added. During reaction with propylene glycol, its succinate was produced (1.1 wt% and 0.6 wt% for KBOL and EPKBOL, respectively).
- What are the chemical properties of plasticizers?
- The chemical properties, such as acid value, iodine value, saponification value, ester value and water content were determinated for the plasticizers and are shown in Table 2. This values provide an additional confirmation for the occurrence of esterification and epoxidation reactions, respectively.
- What is a tetra ester obtained from the esterification reaction of citric acid?
- Soyabean oil. plasticizer. PVC, PLA. cost. of citric acid. tetra esters obtained from the esterificatio n of citru s acid. cane and beetroots . an esterification reaction as sho wn in equation 1. Among plasticizer industry . Triethyl citrate is prepared from the esterification reaction of citric acid with bio -ethanol. products .
