Polymeric Plasticizers
Polymer plasticizers or polyadipates are polyesters of aliphatic dicarboxylic acids. BASF manufactures and markets the following polymer plasticizers for special applications: Palamoll products (polyesters of aliphatic dicarboxylic acids) Palamoll 632: Technical Information Palamoll 638: Technical Information
US3972962A - Non-migrating polymeric plasticizers for polyvinyl
US3972962A - Non-migrating polymeric plasticizers for polyvinyl chloride - Google Patents Non-migrating polymeric plasticizers for polyvinyl chloride Abstract Improved chain-stopped...
Eastman Product List for Polymeric Plasticizers
Admex 525 is a low molecular weight, polymeric plasticizer. Admex 760 is an ultra-high molecular weight, polymeric adipate. It possesses maximum resistance to extraction, migration and volatility. Admex 770 is a medium molecular weight, polymeric adipate. It is characterized by a mild ester odor and very light color.
An overview on selected plasticizers in the aquatic environment
During plasticization, no chemical bonding takes place to impart flexibility to the polymer material’s effective movement of the plasticizers within the polymer matrix. For example, to understand the difference between the flexibility of a PVC incorporated with non-migrating DEHP and migrating DEHP, Navarro et al. ( 2016 ) studied the glass transition temperature (Tg) of both types of PVC
Non-migrating polymeric plasticizers for polyvinyl chloride
We claim: 1. An improved polymer composition comprising polyvinyl chloride homopolymer or polyvinyl chloride copolymer and 10 to 150 parts by weight per 100 parts vinyl resin of a chain-terminated polyester having an average molecular weight between about 2,000 and 5,000 and 210° F viscosity between 200 and 250 centistokes, said polyester composition obtained by the esterification of (a) an
- What is nonmigrating highly plasticized PVC?
- Nonmigrating highly plasticized PVC was prepared based on a new compound that acts as a plasticizer that was derived from di (2-ethylhexyl) 4-hydrophthalate and chlorinated paraffin-52. The as-prepared PVC has a plasticizing efficiency as high as DOP and its migration is totally suppressed.
- Why do flexible PVC materials suffer from migration of additives?
- Flexible PVC materials suffer from migration of their additives. Plasticizers covalently bound to the polymer chain avoid migration. Oligomeric caprolactone additives are prepared by ring-opening polymerization. An industrially viable sustainable way for plasticization is described.
- Do plasticizers migrate?
- To observe the migration of plasticizers, the migration behaviour of the new DOP-like plasticizer in PVC was tested through extraction experiments with n-heptane at room temperature 35. As a comparison, migration of DOP was also measured under the same conditions.
- How can a plasticizer reduce migration?
- Many different strategies , , , , , , , have been proposed to reduce or avoid migration, one of them being the covalent binding of the plasticizer to the PVC chains by nucleophilic substitution reactions of chlorine atoms.
- How can a polymer be plasticized?
- Plasticization can be achieved internally by introducing into the original polymer a comonomer, which reduces crystallizability and increases chain flexibility, or externally by compounding PVC with a low molecular weight compound.
- What are Plasticizer additives based on?
- Most of these plasticizer additives are based on esters of phthalic acid or adipic acid with linear or branched aliphatic alcohols of long chain length. Di (2-ethylhexyl) phthalate (DOP) is by far the most commonly used plasticizer for PVC.
