Short-Chain and Long-Chain Branching in Low-Density Polyethylene

Polymerization with TMA-protected polar vinyl comonomers. II. Catalyzed by nickel complexes containing ?-diimine-type ligands

“…3 Typical spectra are shown in Figures 1, 2, and 3. The resonance assignment of branched polyethylene obtained are the same as reported by Bovey et al 7 Thus, in these figures only the resonances clearly corresponding to the new incorporated polar co-or termonomers are assigned. The missing peaks of comonomer are hidden behind the resonances of branched polyethylene and ethylene/propylene copolymer.…”

Analytical Rheology of Polymer Melts: State of the Art

“…When side branches are synthetically attached to a linear polymer (LP), we get branched or comblike polymers. Branched polymers (BPs) are of immense technological importance, especially for polyolefins, and have been studied extensively over the past 60 years [13][14][15][16][17][18]. Besides direct implications for processability, branching can also affect attributes such as tack and peel properties of pressure-sensitive adhesives [19].…”

Reassessment of Free-Radical Polymerization Mechanism of Allyl Acetate Based on End-Group Determination of Resulting Oligomers by MALDI-TOF-MS Spectrometry

“…In this connection, it is notably recalled that the free-radical polymerizations of ethylene, [32][33][34][35][36][37] vinyl chloride, 38,39 vinyl acetate, [40][41][42][43] and acrylate esters [44][45][46][47][48][49] are governed by the polymerization mechanism involving mid-chain radical formed through backbiting hydrogen abstraction of growing polymer radical. …”