Preparation and application of polyesters: Activity of catalysts for esterification

Pavlov, D.J.; Glavchev, I.; Gospodinova, N.N.; Totev, T

doi:10.1007/bf02699676

Cited by 2 publications

(1 citation statement)

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“…On the other hand, the replacement of 20 per cent DOA with 20 per cent CE decreased the values of the initial viscosity and the viscosities of these plastisoles were lower up to 72 h or 48 h of storage. All these differences could be explained by the contents of the block with −CH 2 −CH 2 −O− groups in the molecules of these CE, with different values of molecular weigh of the CE (Pavlov et al , 2004b) and by the type of the dicarboxylic acids.…”

Section: Resultsmentioning

confidence: 99%

Application of complex esters in poly(vinyl chloride) plastisols and plasticats

Pavlov

Gospodinova

Glavchev

et al. 2005

Pigment &Amp; Resin Technology

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PurposeTo evaluate the efficiency of complex esters as plasticizers in polyvinyl chloride plastisols and plasticates.Design/methodology/approachSeveral poly(vinyl chloride) plastisols and plasticates were prepared with standard phthalate plasticizers and complex esters and were characterised using standard and laboratory methods.FindingsThe use of mixtures of three new CE with standard phthalate plasticizers increased the physical, mechanical and electric characteristics of the resulting PVCPs and PVCPl.Research limitations/implicationsThe use of three new CE, obtained by esterification of dicarboxylic acids (adipic, sebacic, pelargonic), poly(ethylene glycol) and i‐octanole, as plasticizers of poly(vinyl chloride) plastisols and plasticates was investigated. The use of CE based on other organic acids could be explored.Practical implicationsThe results confirmed the efficiency of plasticization of PVC by CE. Such a finding has significant industrial implication.Originality/valueSeveral findings are original and are of importance to relevant industry. The new CE with high molecular weights were effective plasticizers of PVC. The efficiency of the plasticizers depended on their chemical structure. The molecular weight of the CE had no influence on the compatibility of plasticizers and other components of the PVC plastisols and plasticates.

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Section: Resultsmentioning

confidence: 99%