Functionalization of LDPE by Melt Grafting with Glycidyl Methacrylate and Reactive Blending with Polyamide-6

2003 ◽  
Vol 204 (8) ◽  
pp. 1123-1133 ◽  
Author(s):  
Qian Wei ◽  
Donatella Chionna ◽  
Elena Galoppini ◽  
Mariano Pracella
Keyword(s):  
Glycidyl Methacrylate ◽  
Polyamide 6 ◽  
Reactive Blending ◽  
Melt Grafting

Melt Grafting of Glycidyl Methacrylate onto Polyethylene

1998 ◽  
Vol 13 (2) ◽  
pp. 118-128 ◽  
Author(s):  
S. Hojabr ◽  
W. E. Baker ◽  
K. E. Russell ◽  
P. J. McLellan ◽  
M. A. Huneault
Keyword(s):  
Glycidyl Methacrylate ◽  
Melt Grafting

scholarly journals Maleic Anhydride-Grafted Isotactic Polybutene-1 and Modified Polyamide 6

Polymers ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 872 ◽  
Author(s):  
Yongxian Zhao ◽  
Chen Ma ◽  
Shijie Cheng ◽  
Wei Xu ◽  
Yuejuan Du ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Crystallization Rate ◽  
Polyamide 6 ◽  
Melt Flow Rate ◽  
Elongation At Break ◽  
Melt Grafting ◽  
Relative Molecular Weight ◽  
Two Phases ◽  
Optimized Conditions ◽  
Dsc Curves

Maleic anhydride (MAH)–divinyl benzene (DVB) multi-monomer melt-grafting onto isotactic polybutene-1 (iPB-1) was carried out in a torque rheometer. The effects of dicumyl peroxide (DCP), MAH, and DVB concentrations, and temperature, on the reaction, were investigated. The optimized conditions were 170 °C, DVB/MAH = 4:6 (mass ratio). DVB as a comonomer enhanced the grafting degree (Gd) and grafting efficiency (Ge) of iPB-g-MAH better than styrene. The initiator DCP had little effect on Gd as its concentration over 0.2 phr, but the grafts’ melt flow rate (MFR) increased significantly, and relative molecular weight decreased remarkably with increased DCP concentration. With increasing Gd, the contact angle of grafts with water decreased, and there was a larger crystallization rate. The study of iPB-1 and iPB-g-MAH (Gd = 1.5%)-modified polyamide 6 (PA6) showed that iPB-g-MAH had an obviously toughening effect on PA6. With increasing iPB-g-MAH concentration, the blends of impact strength and elongation at break increased obviously, tensile strength decreased slightly, and MFR decreased prominently, which greatly slowed the processing degradation of PA6. The properties of iPB-1/PA6 blends deteriorated. Both DSC curves and SEM micrographs confirmed that PA6/iPB-g-MAH blends had much better compatibility than PA6/iPB. The reason was that the anhydride group in iPB-g-MAH reacted with amide group in PA6 to improve the compatibility between two phases, and iPB-g-MAH is an excellent modifier for PA6.

Crosslinking of Polyamide 6 by Reactive Processing

2015 ◽  
Vol 815 ◽  
pp. 576-582 ◽  
Author(s):  
Tao Yu ◽  
Jian Sheng Chen ◽  
Fu Mei Wu ◽  
Jens Rocks
Keyword(s):  
Polyamide 6 ◽  
Mechanical Tests ◽  
Gravimetric Analysis ◽  
Thermal Gravimetric ◽  
Reactive Processing ◽  
Reactive Blending ◽  
Scanning Calorimetry ◽  
Engineering Plastics ◽  
Chemical Coupling ◽  
Positive Effect

In order to check the feasibility of crosslinking engineering plastics through chemical coupling, reactive blending of polyamide 6 (PA6) was performed with various amounts of a multi-functional epoxide named as Joncryl ADR®4370s. The formation of cross-linked structure in ADR modified PA6 was clearly verified by utilizing dynamic rheological technique. The thermal properties of modified PA6 were compared with that of pristine nylon by combination of differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). Mechanical tests were also carried out and the results showed that ADR had a positive effect on improving tensile properties of polyamide.

Melt grafting copolymerization of glycidyl methacrylate onto acrylonitrile-butadiene-styrene (ABS) terpolymer

2015 ◽  
Vol 22 (4) ◽  
Author(s):  
Huiju Shao ◽  
Shuhao Qin ◽  
Jianbing Guo ◽  
Bin Wu
Keyword(s):  
Ir Spectra ◽  
Glycidyl Methacrylate ◽  
Acrylonitrile Butadiene Styrene ◽  
Melt Grafting ◽  
Grafting Copolymerization ◽  
Butadiene Styrene

AbstractThe grafting copolymerization of glycidyl methacrylate (GMA) onto acrylonitrile-butadiene-styrene (ABS) terpolymer was carried out using the melt grafting process. Infrared (IR) spectra,

Investigation on the Polyamide 6/SEBS-g-MA/Organoclay Nanocomposites with Glycidyl Methacrylate as a Compatibilizer

2011 ◽  
Vol 50 (7) ◽  
pp. 719-726 ◽  
Author(s):  
Sanxiong He ◽  
Wei Wu ◽  
Ru Wang ◽  
Weiguang Pu ◽  
Yujie Chen
Keyword(s):  
Glycidyl Methacrylate ◽  
Polyamide 6

Self-organized materials and graft copolymers of polymethylmethacrylate and polyamide-6 obtained by reactive blending

Polymer ◽  
2005 ◽  
Vol 46 (17) ◽  
pp. 6554-6562 ◽  
Author(s):  
M. Freluche ◽  
I. Iliopoulos ◽  
J.J. Flat ◽  
A.V. Ruzette ◽  
L. Leibler
Keyword(s):  
Graft Copolymers ◽  
Polyamide 6 ◽  
Reactive Blending ◽  
Self Organized
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