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
In this work, a novel high efficiency plasticizer, an ester-capped oligomeric lactic acid mixture (EOL), was successfully synthesized by a two-step esterification reaction, with L -lactic acid as the main raw material. The structure of EOL was characterized by using FT-IR, 1 H NMR and time of flight mass spectrometry (TOF-MS).
Synthesis of plasticizer ester using acid-functionalized
2.3. General procedure for synthesis of plasticizer ester. Weighed amounts of acid, alcohol, ionic liquid, cyclohexane were added to a flask with a reflux condenser, a water segregator and magnetic stirring apparatus. The esterification reaction was typically carried out for 2–12 h at the desired temperature with vigorous stirring.
Preparation and Performance of Bio-Based Polyol Ester
PVC paste resin (degree of polymerization (DP) = 1500 ± 100, K value = 68.9–75.0). All chemicals were used as received without further purification. Synthesis of Castor Oil Methyl Ester. Castor oil methyl ester was synthesized according to our previous study . Castor oil (50 g), anhydrous methanol (10 g) and KOH (0.45 g) were mixed in a 250
Thermal properties of charring plasticizers from the biobased
The thermal degradation of two sets of charring plasticizers, pentaerythritol esters containing aromatic units and alkyl 3,5-(diphenylphosphato)benzoates, has been detailed using infrared spectroscopy to detect changes which correspond to decomposition. For both sets of esters, elimination of an acid is a major degradation process.
- How are ester plasticizers selected?
- Ester plasticizers are selected based upon cost/performance evaluation. The rubber compounder must evaluate ester plasticizers for compatibility, processability, permanence and performance properties. The study of these properties by the rubber compounder will contribute to the selection of a high-performance ester plasticizer.
- Why do we use ester plasticizers?
- Ester plasticizers make it possible to process elastomers easily while also providing flexibility in the end-use product. Plasticizer–elastomer interaction is governed by many factors, such as solubility parameter, molecular weight and chemical structure. Ester plasticizers are selected based upon cost/performance evaluation.
- What is a general performance ester plasticizer?
- Some general performance ester plasticizers used in the marketplace today are DOA, DIDA, DIDP, DOP, DINP and other phthalates and adipates made from straight-chain alcohols of 7–11 carbons in length. Ester plasticizers are commonly used only for their as-molded, low-temperature contribution.
- What factors affect Plasticizer-elastomer interaction?
- Plasticizer–elastomer interaction is governed by many factors, such as solubility parameter, molecular weight and chemical structure. Ester plasticizers are selected based upon cost/performance evaluation. The rubber compounder must evaluate ester plasticizers for compatibility, processability, permanence and performance properties.
- How to choose a high-performance ester plasticizer?
- The rubber compounder must evaluate ester plasticizers for compatibility, processability, permanence and performance properties. The study of these properties by the rubber compounder will contribute to the selection of a high-performance ester plasticizer. 1.
- What is a vulcanized polypropylene m-isotactic plasticizer?
- aDynamically vulcanized TPE,25 30 EP (D) M-isotactic polypropylene (30/70), plus 32 percent plasticizer bTgs measured from tan delta peak at 10hz. The basic function of an ester plasticizer is to modify a polymer or resin to enhance its utility.
