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Application of a bio‐based polyester plasticizer modified by hydrosilicon‐hydrogenation reaction in soft PVC films
Author(s) -
Ji Shufang,
Gao Chuanhui,
Wang Huizi,
Liu Yuetao,
Zhang Di,
Zhang Shanfa,
Lu Xiaotong,
Wu Yumin,
Hu Zunfu
Publication year - 2019
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.4546
Subject(s) - plasticizer , materials science , fourier transform infrared spectroscopy , x ray photoelectron spectroscopy , chemical engineering , dynamic mechanical analysis , polymer chemistry , nuclear chemistry , composite material , polymer , chemistry , engineering
A kind of bio‐based plasticizer, poly (hexanediol maleic) (MH), was synthesized using 1,6‐hexalene and maleic acid as raw materials, and it was modified by hydrosilicon‐hydrogenation reaction to improve its plasticizing efficiency. The chemical structure and plasticizing performance of MH and its modification product (MHA) were characterized by Fourier‐transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance ( 1 H‐NMR), X‐ray photoelectron spectroscopy (XPS), and Dynamic mechanical analysis (DMA). It was found that the hydrosilicon‐hydrogenation modification effectively improved the plasticizing efficiency of MH, reflecting on the decreased T g and the increased elongation at break of PVC blends. The migration resistance of PVC blends was tested and analyzed by solubility parameters, which revealed that the migration stabilities of PVC blends were promoted after modification. It was verified that the hydrogen bonding interaction between the CO group of plasticizers and α‐hydrogen of PVC exhibited in FTIR analysis was the main reason for the improvement of plasticizer performance of MH. Moreover, a new hydrogen bonding formed between SiOSi of MHA and the α‐hydrogen of PVC derived from XPS also caused the further improvement of plasticity for MHA.