Towards degradable polyethylene: end-functionalised polyethylene (PE-X) and PE-I/LDPE blends from iron-catalysed chain growth of ZnEt₂ with ethylene

Abstract

A series of end-functionalised polyethylene materials (PE-X) has been prepared via the catalysed chain growth (CCG) reaction of diethyl zinc with ethylene, catalysed by a bis(imino)pyridine iron catalyst actived by...

Coordinative Chain Transfer and Chain Shuttling Polymerization

“…The resulting (PE) 2 Zn moieties were terminated with appropriate reagents, providing corresponding PE-OH, PEsulfides, PE-Br or PE-I. Novel blends of PE-I and LDPE were investigated as potentially degradable PE materials via the photolytic cleavage of PE-I, uniformly distributed in LDPE matrix …”

“…Novel blends of PE-I and LDPE were investigated as potentially degradable PE materials via the photolytic cleavage of PE-I, uniformly distributed in LDPE matrix. 89 Novel titanium guanidinate complexes 2a−c (Figure 1) activated with perfluoroarylborates/R 3 Al (paragraph 2.1.1) provided PEs with aluminum chain ends. The oxidation with subsequent hydrolysis of aluminum terminated PEs led to the generation of hydroxyl end groups with functionalization efficiency up to 80% (Table 3).…”

Research Progress of Iron Catalysts with N,N,N‐tridentate Ligands for Ethylene Polymerization

“…Ethylene polymerization is important chemical process, where the influence of catalyst design plays a vital role in the outcome of the product distribution [1–9] . Among the numerous catalysts, iron catalysts are becoming attractive owing to their environmental friendliness, low price, and abundant reserves [10–13] .…”

“…Ethylene polymerization is important chemical process, where the influence of catalyst design plays a vital role in the outcome of the product distribution. [1][2][3][4][5][6][7][8][9] Among the numerous catalysts, iron catalysts are becoming attractive owing to their environmental friendliness, low price, and abundant reserves. [10][11][12][13] Nonetheless, the development of these catalysts is hurdled by their wide distribution of polymerization products and poor thermal stability when catalyzing ethylene polymerization.…”