Polymeric Plasticizers - ScienceDirect
A plasticizer is a chemical used to reduce the stiffness of an amorphous (glassy) thermoplastic resin and improve the processibility of the product. The result of incorporating a plasticizer is a product that has a lower degree of stiffness than the parent thermoplastic.
US5281647A - Polymeric plasticizers and a process
Typically the polymeric plasticizer is employed in a percent composition of about 35 to 65 and preferably 45 to 55 percent by weight based on the total weight of the composition. Typically the...
Selection of Solid-State Plasticizers as Processing Aids
The objective of the study was to select solid-state plasticizers for hot-melt extrusion (HME) process. The physical and mechanical properties of plasticizers, in selected binary (polymer:plasticizer) and ternary (active pharmaceutical ingredient:polymer:plasticizer) systems, were evaluated to assess their effectiveness as processing aids for
CA2108396A1 - Polymeric plasticizers and a process
POLYMERIC PLASTICIZERS AND A PROCESS FOR PREPARING THE SAME ABSTRACT OF THE INVENTION The present invention relates to a polymeric plasticizer and a process for plasticizing material therewith; said polymeric material comprises a reaction product of a diacid with a highly hindered diol and another diol in a stoichiometric excess of the acid over the diol, followed by reacting the resulting
CHAPTER 1 Formulation Development - Wiley
level and type of plasticizer. Compounds for low-temperature service most often use blends of standard with special-purpose low-temperature plasticizers (e.g., di-2-ethylhexyl adipate (DOA)). Plasticization typically decreases chemical, solvent, and oil resistance. This can be countered by use of polymeric plasticizers, with attendant
- What is a polymeric plasticizer?
- A polymeric plasticizer produces exactly the same result and increases the molecular mobility of the polymer chains. This increase in mobility produces a lowering of the T g. II. III. I.. INTRODUCTION A.. Plasticizers 1.. Definition A plasticizer is a chemical used to reduce the stiffness of an amorphous (glassy) thermoplastic resin.
- What is the molecular effect of a monomeric plasticizer?
- The fundamental molecular effect of a monomeric plasticizer is to interact on a molecular scale with the segments of the polymer to speed up the viscoelastic response of the polymer. A polymeric plasticizer produces exactly the same result and increases the molecular mobility of the polymer chains.
- Can polymeric plasticizers be used with adipic acid?
- When the extraction allowed must be very low, polymeric products of adipic acid with diols such as propanediol or butanediol can be used. Polymeric plasticizers have low extraction, but due to its high molecular weight and viscosity, some problems arise in the processing of final products.
- What is the permanence of high molecular weight plasticizers?
- The permanence of high molecular weight plasticizers is such that the average molecular weight of the polymeric plasticizer is no longer a factor.
- What is a plasticizer used for?
- Definition A plasticizer is a chemical used to reduce the stiffness of an amorphous (glassy) thermoplastic resin. As an added benefit, it may also improve the processibility of the product.
- How does a polymeric plasticizer affect molecular mobility?
- The fundamental molecular effect of a monomeric plasticizer is to interact on a molecular scale with the segments of the polymer to speed up the viscoelastic response of the polymer. A polymeric plasticizer produces exactly the same result. Thus, a plasticizer increases the molecular mobility of the polymer chains.
