TY - JOUR T1 - Unsaturated polyester hardening by CO2-Laser and analysis its chemical structure by Raman and FT-IR Spectroscopy TT - سخت‌سازی پلی‌استر غیر اشباع توسط لیزر CO2 و تحلیل ساختار شیمیایی آن توسط طیف‌سنجی‌های رامان و مادون قرمز تبدیل فوریه JF - opsi JO - opsi VL - 21 IS - 0 UR - http://opsi.ir/article-1-704-en.html Y1 - 2015 SP - 1309 EP - 1312 KW - unsaturated polyester KW - cross-link KW - Raman spectroscopy KW - Fourier transform infrared spectroscopy (FT-IR) KW - laser CO2. N2 - Unsaturated polyester was hardened by CO2-laser. Its chemical structure before and after of hardening was studied by using of Raman and Fourier transform infrared (FT-IR) spectroscopy. The results indicated that Raman spectroscopy is much better than FT-IR spectroscopy to demonstrate the changes in chemical structure. M3 ER -