Synthesis of diazo functional copolymers based on melamine-paraformaldehyde
- سال انتشار: 1398
- محل انتشار: بیست و هفتمین کنفرانس شیمی آلی ایران
- کد COI اختصاصی: ISOC27_086
- زبان مقاله: انگلیسی
- تعداد مشاهده: 182
نویسندگان
Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran
Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran
Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran
چکیده
Polymeric architecture at different levels plays a key role to influence the photoresponsive behavior of azo polymers. In the past decades, azo polymers with different polymeric structures have been synthesized, such as sidechain polymers, main-chain polymers, dendritic polymers, crosslinked network, and block copolymers.1,2 Typically, azo polymers can be prepared by radical polymerization and step-growth polycondensation.3,4 In this work diazo functional copolymers based on poly melamine-paraformaldehyde was synthesized. For this purpose firstly the melamine- paraformaldehyde copolymer was synthesized with excess ratio of melamine to form a water soluble copolymer with –NH2 end groups. Then the prepared copolymer was reacted with NaNO2/HCl to from diazonium salt. In the final step, the azo-functionalized copolymers were synthesized using phenol, aniline or 4-nitro aniline compounds. The synthesized compounds were characterized by spectroscopic methods and their properties were studied.کلیدواژه ها
Diazo polymers, Polymerization, Synthesis, Diazonium salt.مقالات مرتبط جدید
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