Hydrogenolysis of Linear Low-Density Polyethylene during Heterogeneous Catalytic Hydrogen–Deuterium Exchange

Abstract

Discussion of unusually low dispersity in highly degraded LLDPE samples Samples of the LLDPE (Mw = 120 kg/mol, Ð = 2.5) that were heavily degraded due to hydrogenolysis, resulting in Mw < 5 kg/mol, displayed dispersities Ð = Mw/Mn < 1.5, which is significantly smaller than what is expected due to the random cleavage of CC backbone bonds, Ð ≈ 2. We speculate here on three possible reasons for this behavior.

Effect of reaction conditions on the hydrogenolysis of polypropylene and polyethylene into gas and liquid alkanes

“…[10][11][12][13] Numerous recent reports are focusing on hydrogenolysis as a conversion strategy (Table 1 (ref. [14][15][16][17][18][19][20][21][22][23][24]). While several platinum (Pt)-group metals are being explored, Ru-based catalysts are attracting most of the attention from the research community.…”

Ring opening copolymerization of δ-valerolactone with 2-methyl-1,3-dioxane-4-one towards poly(3-hydroxypropionate-co-5-hydroxyvalerate) copolyesters

“…10,11 However, a well-designed strategy of ring-opening polymerization (ROP) for synthetic polyesters is gaining increasing interest, 12 because ROP as the most commonly employed chain growth methodology offers an advantage by enabling high control over both the polymer structure and the rate of polymerization. 13–15…”

Deuteration and Polymers: Rich History with Great Potential

“…More recently, Bates and Lodge and their co-workers performed several studies on the catalytic H/D exchange of polyolefins (Figure ). − HDPE, iPP, and PEP were catalyzed by using a heterogeneous Pt–Re/SiO 2 catalyst with decalin, decane, isooctane, and heptane, independently, as solvents. The exchange reaction was operated under a high pressure of D 2 at an elevated temperature.…”