TY - JOUR ID - TI - Synthesis and Studies of some hydrophilic acrylic denture base material تحضير ودراسة حول قاعدة طقم الأسنان الاكريلية المحبة للماء AU - Mahmoud S. Muter PY - 2008 VL - 6 IS - 1 SP - 61 EP - 70 JO - Al- Anbar Medical Journal مجلة الأنبار الطبية SN - 27066207 26643154 AB - Abstract
Experiment: Heat cured acrylic dental base material was prepared through using a new formula which includes acrylic and methacrylic acid, and new polymer : monomer ratio The specimens was prepared by useing different composition of denture base materials. Benzoyl peroxide is used as initiator to polymerization of polymer/ monomer mixture. The heating process used to control polymerization according to certain program.
Discussion: The new chemical modification of polymethylmethacrylate (PMMA) was prepared by using alkali of different concentrations. Added the prepared (PMAC) to the powder (PMMA), in this case a blend and not copolymer is obtained. While methylmethacrylate (MMA) monomer was copolymerized with acrylic acid (AC) and methacrylic acid (MAC).
Conclusions: The effect of the variables on residual monomer concentration like gas-liquid chromatography analysis and determination acid value, porosity as well as the preparing polymer was characterized by infra red (I.R) spectra.
In our case we have used a new ratio of polymer to monomer through which we achieved no monomer content and no porosity the last finding is believed to be responsible for good physico-chemical and physico-mechanical properties.

الملخص:تم تحضير قاعدة طقم الأسنان الاكريلية باستخدام خليط جديد يحتوي على حامض الاكريلك وحامض الميثاكريلك واستخدام نسبة جديدة من البوليمر إلى المونيمر. تم التحليل الكروموتاكرافي (GLC) للبوليمر لمعرفة المونيمر المتبقي(غير المتبلمر)، وتعيين تأثير مجموعه من العوامل(gelation time, Acid value) على البولمر، وكذلك مسامية المادة الاكريلية (وجود الفجوات فيها)، بالإضافة إلى التحليل بطيف الأشعة تحت الحمراء للبولمر المحضر. ER -