Denture base polymers, poly methyl methacrylate improved using free radical copolymerization
Publish place: Iranian Chemical Communication، Vol: 3، Issue: 3
Publish Year: 1394
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_ICC-3-3_010
تاریخ نمایه سازی: 1 مرداد 1397
Abstract:
Poly methyl methacrylate (PMMA) is the most common material used in Prosthodontics. Severalstudies indicate a breakdown of the number of very high resin bases after 2 to 3 years to avoidbreaking bass, and several attempts have been made such as altering the chemical structure ofresin by adding causes cross linking or copolymerization. As an innovative method forimproving the physical properties of the prosthesis and increasing its strength, a copolymer ofstyrene-methyl methacrylate was proposed. Tensile strength was increased with the increase ofstyrene with methyl methacrylate in an amount determined to be the most resistant. Polystyreneand poly methyl methacrylate and copolymers characterized by FTIR, CNMR and Tg and tensilestrength were measured according to ISO1567 standard.
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Authors
Abdoulhossien Massoudi
Department of Chemistry, Payame Noor University, P. O. BOX ۱۹۳۹۵-۴۶۹۷ Tehran, Iran
Azam Louie
Department of Chemistry, Payame Noor University, P. O. BOX ۱۹۳۹۵-۴۶۹۷ Tehran, Iran
Omid Louie
Department of Chemistry, Payame Noor University, P. O. BOX ۱۹۳۹۵-۴۶۹۷ Tehran, Iran