Preprint Article Version 1 This version is not peer-reviewed

Facile Synthesis of Di-Mannitol Adipate Ester-Based Zinc Metal Alkoxide As Bi-Functional Additives for PVC

Version 1 : Received: 30 March 2019 / Approved: 1 April 2019 / Online: 1 April 2019 (10:08:12 CEST)

A peer-reviewed article of this Preprint also exists.

Li, Y.; Li, D.; Han, W.; Zhang, M.; Ai, B.; Zhang, L.; Sun, H.; Cui, Z. Facile Synthesis of Di-Mannitol Adipate Ester-Based Zinc Metal Alkoxide as a Bi-Functional Additive for Poly(Vinyl Chloride). Polymers 2019, 11, 813. Li, Y.; Li, D.; Han, W.; Zhang, M.; Ai, B.; Zhang, L.; Sun, H.; Cui, Z. Facile Synthesis of Di-Mannitol Adipate Ester-Based Zinc Metal Alkoxide as a Bi-Functional Additive for Poly(Vinyl Chloride). Polymers 2019, 11, 813.

Journal reference: Polymers 2019, 11, 813
DOI: 10.3390/polym11050813

Abstract

A new di-mannitol adipate ester-based zinc metal alkoxide (DMAE-Zn) was synthesized as a bi-functional PVC thermal stabilizer for the first time. The materials were characterized with Fourier-transform Infrared spectroscopy (FT-IR) and thermogravimetric analysis (TGA). Characterization results confirmed the formation of Zn-O bonds in DMAE-Zn; and that DMAE-Zn had a high decomposition temperature and a low melting point. The thermal stability of DMAE-Zn on PVC also was tested by conductivity test, thermal aging test, and UV-visible spectroscopy (UV-VIS) test. PVC stabilized by DMAE-Zn had a good initial color and excellent long-term stability. UV-VIS also showed that the conjugated structure in PVC stabilized by DMAE-Zn was almost all of the triene, suggesting that the addition of DMAE-Zn would suppress the formation of conjugated structures above tetraene. Dynamic processing performance of PVC samples tested by torque rheometer indicated that, having a good compatibility with PVC chains in the amorphous regions, DMAE-Zn contributed good plasticizing effect to PVC. DMAE-Zn thus effectively demonstrates bi-functional roles, e.g., thermal stabilizers and plasticizers to PVC. Furthermore, FT-IR, HCl absorption capacity test, and complex ZnCl2 test were also used to verify the thermal stability mechanism of DMAE-Zn for PVC.

Subject Areas

PVC; thermal stabilizers; bi-functional; di-mannitol adipate ester-based zinc metal alkoxide; plasticizers

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