EDTA incorporated Fe-Zn double metal cyanide catalyst for the controlled synthesis of polyoxypropylene glycol

被引：0
作者：
Akash Verma
Swati Saini
Bhawna Sharma
Vikas Verma
Babita Behera
Raghuvir Singh
Sudip K. Ganguly
Anjan Ray
Alexander Vorontsov
Umesh Kumar
机构：
[1] CSIR-Indian Institute of Petroleum,Polymeric Materials Area, Chemical and Material Sciences Division
[2] Academy of Scientific and Innovative Research (AcSIR),Analytical Sciences Division
[3] CSIR-Indian Institute of Petroleum,undefined
[4] Chemical Engineering Department,undefined
[5] Ariel University,undefined
来源：
Journal of Polymer Research | 2023年 / 30卷
关键词：
Double metal cyanide catalyst; Ring opening polymerization; EDTA; Heterogeneous catalysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
One pot, solvent free ring opening polymerization (ROP) of propylene oxide (PO) was studied by using lab synthesized heterogeneous double metal cyanide (DMC) catalyst. A series of DMC catalysts was prepared by using EDTA as novel complexing agent (CA) and characterized in detail by PXRD, FT-IR, UV–Vis, 13C CP-MAS NMR, AAS, SEM, XPS, and CHNS analyzer. The suitable amount of CA favored high Zn/Fe ratio and enhanced catalytic activity for polyoxypropylene glycol (PPG) synthesis. It was observed that the properties of PPG are governed by reaction parameters, including catalyst amount, reaction time, temperature, pressure, feed to initiator ratio, and different initiators. The prepared polymers have Mw (160 to 19,667 g mol−1) and PDI (1.05 to 3.01) during optimization. The structure elucidation of PPG was confirmed by FT-IR, GPC, and 1H NMR. Dipropylene glycol (DPG) initiator yielded highest 93% PPG with 1.29 PDI, and 4.9 mg-KOH g−1 hydroxyl value. The kinetics study confirms first-order reaction with proposed coordination mechanism.[graphic not available: see fulltext]
引用
收藏
相关论文
共 174 条
  • [1] Patton J(1976)Zur Übertragungsreaktion bei der anionichen Polymerisation von Oxiranen VI. Zum Einfluß von Kronenetherzusätzen auf die Polymerisation von Propylenoxid† Chem Tech 6 780-32
  • [2] Becker H(1984)Zinc glutarate-mediated copolymerization of CO 2 and PO–parameter studies using design of experiments Acta Polym 35 28-318
  • [3] Wagner G(1997)Anionic polymerisation of propylene oxide. Investigation of double-bond and head-to-head content by NMR spectroscopy Macromolecules 30 316-3608
  • [4] Wu B(1998)Solvation and ion pairing of alkali-metal alkoxides in dimethyl sulfoxide. Conductometric studies Organometllics 17 3599-2905
  • [5] Harlan CJ(2017)Polymerization of cyclic ethers and sulfides Catal Sci Technol 7 2897-1538
  • [6] Lenz RW(1994)Amorphous, high molecular weight polypropylene oxide, macromolecular Macromole Chem Phys 195 1517-1787
  • [7] Barron AR(1974)Polymerization of propylene oxide by using double metal cyanide catalysts and the application to polyurethane elastomer J Am Chem SOC 96 1782-551
  • [8] Emig N(1972)Effects of method of preparation on catalytic activity of Co–Zn double-metal cyanide catalysts for copolymerization of CO2 and epoxide Polym Prepr 13 545-13
  • [9] Ngugen H(1974)Aliphatic polycarbonate synthesis by copolymerization of carbon dioxide with epoxides over double metal cyanide catalysts prepared by using ZnX2 (X= F, Cl, Br, I) Synthesis 5 9-3428
  • [10] Krautscheid H(2003)Hybrid sol–gel double metal cyanide catalysts for the copolymerisation of styrene oxide and CO 2 Polymer 44 3417-308
12345678910