Effect of polycarbonate-poly(methyl methacrylate) graft copolymer as a modifier improving the surface hardness of polycarbonate

2002 ◽  
Vol 84 (5) ◽  
pp. 1106-1106
Author(s):  
Masaya Okamoto
Keyword(s):  
Methyl Methacrylate ◽  
Graft Copolymer ◽  
Surface Hardness ◽  
Poly Methyl Methacrylate

Surface hardness and transparency of poly(methyl methacrylate)-silica coat film derived from perhydropolysilazane

2007 ◽  
Vol 104 (5) ◽  
pp. 3388-3395 ◽  
Author(s):  
Reiko Saito ◽  
Shin-ichiro Kobayashi ◽  
Hidetaka Hayashi ◽  
Toshihisa Shimo
Keyword(s):  
Methyl Methacrylate ◽  
Surface Hardness ◽  
Poly Methyl Methacrylate

Enrichment of poly(methyl methacrylate) and its graft copolymer of polybutadiene on the surface of polypropylene blends

2008 ◽  
Vol 254 (6) ◽  
pp. 1763-1770 ◽  
Author(s):  
Han Jia Chen ◽  
Xu Hua Shi ◽  
Ya Fei Zhu ◽  
Yi Zhang ◽  
Jia Rui Xu
Keyword(s):  
Methyl Methacrylate ◽  
Graft Copolymer ◽  
Poly Methyl Methacrylate ◽  
Polypropylene Blends

scholarly journals The Mechanical Properties of a Poly(methyl methacrylate) Denture Base Material Modified with Dimethyl Itaconate and Di-n-butyl Itaconate

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Pavle Spasojevic ◽  
Milorad Zrilic ◽  
Vesna Panic ◽  
Dragoslav Stamenkovic ◽  
Sanja Seslija ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Methyl Methacrylate ◽  
Surface Hardness ◽  
Base Material ◽  
Dynamic Mechanical Properties ◽  
Denture Base ◽  
Mean Values ◽  
Poly Methyl Methacrylate ◽  
Base Materials ◽  
Wide Range

This study investigates a wide range of clinically relevant mechanical properties of poly(methyl methacrylate) (PMMA) denture base materials modified with di-methyl itaconate (DMI) and di-n-butyl itaconate (DBI) in order to compare them to a commercial PMMA denture base material. The commercial denture base formulation was modified with DMI and DBI by replacing up to 10 wt% of methyl methacrylate (MMA) monomer. The specimens were prepared by standard bath curing process. The influence of the itaconate content on hardness, impact strength, tensile, and thermal and dynamic mechanical properties was investigated. It is found that the addition of di-n-alkyl itaconates gives homogenous blends that show decreased glass transition temperature, as well as decrease in storage modulus, ultimate tensile strength, and impact fracture resistance with increase in the itaconate content. The mean values of surface hardness show no significant change with the addition of itaconates. The magnitude of the measured values indicates that the poly(methyl methacrylate) (PMMA) denture base material modified with itaconates could be developed into a less toxic, more environmentally and patient friendly product than commercial pure PMMA denture base material.

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