Kinetics of polyesterification: modelling and simulation of unsaturated polyester synthesis involving 2-methyl-1,3-propanediol

Nalampang, Kanarat; Johnson, A. F.

doi:10.1016/s0032-3861(03)00552-4

Cited by 24 publications

(14 citation statements)

References 12 publications

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“…It is well recognized that the linearity and conformation of polymer backbone have a significant effect on the crystallization behavior of the polymer. The methyl group which MPD introduces into the polymer side chain helps to inhibit the crystallization of polyester resins [35][36][37][38][39]. The effects of MPD monomer on the physical properties of unsaturated [40][41][42][43] and isophthalate-based polyesters have been studied [44].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of novel poly(butylene succinate-co-2-methyl-1,3-propylene succinate)s

Chen¹,

Yang²,

Chen

et al. 2011

Express Polym. Lett.

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Abstract. Poly(butylene succinate) (PBSu), poly(2-methyl-1,3-propylene succinate) (PMPSu), and PBSu-rich copolyesters were synthesized using an effective catalyst, titanium tetraisopropoxide. Measurements of intrinsic viscosity (1.20-1.28 dl/g) and gel permeation chromatography demonstrated the success of the preparation of polyesters with high molecular weights. The compositions of the copolyesters were determined in three approaches from 1 H and 13 C NMR (nuclear magnetic resonance) analyses, and good agreement between the results was obtained. The distributions of the comonomers were found to be random from the spectra of carbonyl carbon. Their thermal properties were elucidated using a differential scanning calorimeter and a thermogravimetric analyzer. No marked difference exists among the thermal stabilities of these polyesters. However, the window between the glass transition and the melting temperatures becomes narrower with the increase in the concentration of 2-methyl-1,3-propylene succinate in the copolymers. Additionally, the cold crystallization ability decreases considerably. Finally, PMPSu is an amorphous homopolymer. Wide-angle X-ray diffractograms of isothermally crystallized copolyesters also follow the same trend.

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Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of novel poly(butylene succinate-co-2-methyl-1,3-propylene succinate)s

Chen¹,

Yang²,

Chen

et al. 2011

Express Polym. Lett.

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“…The increased polyesterification rate of MPD with maleic anhydride, phthalic anhydride and isophthalic acid was ascertained [18]. Kinetic studies were carried out.…”

Section: Glycols and Other Polyhydric Alcoholsmentioning

confidence: 99%

Unsaturated Polyester Resins: Chemistry and Technology

Penczek

Czub

Pielichowski

2005

Advances in Polymer Science

105

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“…[4][5][6][7] Considering the importance of polymer properties research with the use of model low-molecular compounds, we conducted the synthesis of bis(5-hydroxypenthyl) phthalate, as a fragment of polyester plastics, according to the generally accepted principles. [8][9][10] We chose this oligoester as the model compound to characterize the relaxation properties of unsaturated polyester linear resins and dendrite resins. [11] The possibility of the study of relaxation processes for oligoesters -suitable fragments of polyestersallows for describing the relaxation processes of whole polyester molecule.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Relaxation Properties of bis(5‐Hydroxypenthyl)Phthalate ‐ the Model Oligoester to Study the Relaxation Properties of Polyesters

Sułkowski

Maślanka

Pentak

et al. 2007

Macromolecular Symposia

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Summary: The description of polymer relaxation proprieties is the way to characterize the influence of polymer structure on its useful proprieties of stability and resistance. To perform physicochemical profiles of polymers the synthesis and investigation of model compounds was required. The instrumental methods such as NMR, FTIR, dielectric spectroscopy were used. The results of the experiments allowed us to improve the technology of the synthesis processes and the extension of the range of their usage. Moreover the obtained polymers were more stable and more resistant to degradation. To acquire the profile of the relaxation properties of the linear, hyperbranched and dendrite unsaturated polyester resins, the synthesis of the oligoesters as the model compounds was performed. Pentane-1,5-diol phthalic anhydride was used as substrate of the process. The structures of the obtained model compound were confirmed by elemental analysis and 1 H NMR and FTIR spectroscopy. Measurements of the relaxation processes of the model compound were also done. The determination of the a, b and b 0 relaxation processes for model oligoesters allow us to describe the practical properties of commercial compounds. The description of model relation of the relaxation process may facilitate the interpretation of the dependence between useful properties of polyesters and their molecular structure.

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Kinetics of polyesterification: modelling and simulation of unsaturated polyester synthesis involving 2-methyl-1,3-propanediol

Cited by 24 publications

References 12 publications

Synthesis and characterization of novel poly(butylene succinate-co-2-methyl-1,3-propylene succinate)s

Synthesis and characterization of novel poly(butylene succinate-co-2-methyl-1,3-propylene succinate)s

Unsaturated Polyester Resins: Chemistry and Technology

Synthesis and Relaxation Properties of bis(5‐Hydroxypenthyl)Phthalate ‐ the Model Oligoester to Study the Relaxation Properties of Polyesters

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