Studies on thermal, thermal ageing and morphological characteristics of EPDM-g-VTES/LLDPE

Effect of polymer structure and additives on silane grafting of polyethylene

“…According to FTIR analysis, the resultant grafting efficiency (peak height at 1092 cm -1 ) is 78 mm in case of adding EPDM, which is higher compared to the grafting efficiency of the sample containing no EPDM (in that case the grafting efficiency was 63). This could be due to the unsaturation in diene monomer exists in EPDM, which creates some additional reactive sites for silane grafting to occur (grafting may also occur by the abstraction of secondary hydrogen from a polyethylene sequence of EPDM [33,34]). A schematic of probable silane grafting on unsaturated bond in EPDM is demonstrated in Figure 7.…”

Organic–inorganic hybrid proton exchange membranes based on silicon-containing polyacrylate nanoparticles with phosphotungstic acid

“…1 . Compared with the PANP, all SiPANP samples exhibited a new peak at about 1116 cm −1 which was attributed to Si-O-Si asymmetric stretching vibration [32]. The appearance of this new peak proved the occurrence of hydrolysis and condensation reactions (crosslinking) of Si(OR) 3 groups and suggested the formation of crosslinked silica network structure in the SiPANP membranes (Scheme 1).…”

Synthesis and Characterization of Methylacrylic Acid and Butyl Acrylate Grafted onto Ethylene-Propylene-Diene Terpolymer

“…[23] Grafting of vinyltriethoxysilane (VTES) onto EPDM/LLDPE blends has been reported for engineering and ablative applications; they enhanced the dynamic vulcanization to withstand high temperature. [24,25] Maleic anhydride was grafted onto EPDM using a grafting copolymerization method. Then organic/inorganic composite coatings with varied infrared emissivity were obtained by using either EPDM or EPDM-g-MAH as adhesive and Cu powder as pigment.…”

“…[10][11][12][13][14] In recent years, using different organic peroxide systems, grafting of polar groups, such as styrene, acrylonitrile, maleic anhydride, 2-dimethylamino ethylmethacrylate (DMAEMA), tris(2-methoxyethoxy)vinylsilane (TMEVS), polystyrene, poly(methylmethacrylate) (PMMA) and vinyloxyaminosilane, to the EPDM rubber backbone to functionalize the polymer has been studied by various researchers. [15][16][17][18][19][20][21][22][23][24][25][26][27] Grafting of methyl methacrylate (MMA) and styrene (St) onto EPDM has been carried out using solution polymerization to enhance its weatherability, yellow discoloration, and ageing property. [22] Styrene-EPDM-acrylonitrile (AES)/SAN blends were synthesized for their use as an effective toughening agent for SAN.…”