Synthesis of Naphthalimidopropyl Acrylate and GMA Copolymers and Their Physical Properties

Abstract

This work, which was about the synthesis of naphthalimidopropyl acrylate and GMA copolymers and their physical properties, investigated the compositions of the copolymer, the reactivity ratios of the monomer, resonance effect (Q), polar effect (e) and fluorescence of naphthalene. Azobisisobutyronitronitryl (AIBN) as an initiator was employed at 60 o C with dimethylformamide (DMF) of solvent for the copolymerization of NIPA. r 1 was found to be higher than r 2 from the reactivity ratios of the monomer obtained from Fineman-Ross (F-R), Kelen-Tüdös (K-T) methods. NIPA was found to be more copolymerized than GMA. r 1 ·r 2 product was lower than 1, copolymerization was maked random-alternating type. The fluorescence spectrum of these polymers showed a weak monomer fluorescence band at 380 nm and a strong excimer fluorescence band at about 460 nm. Fluorescence life time of NIPA monomer showed fluorescence cover with UV 355 nm at room temperature, and life time showed 5.1449×10 -7 s.Keywords: 3-(1,8-naphthalimido) propyl acrylate, monomer reactivity ratios, resonance effect (Q), polar effect (e), fluorescence life time. 서 론나프탈이미드기를 가지는 중합체는 열 저항성과 내구성이 우수하고 발광특성을 가지며 특히 광 발광성을 가진 비닐단 량체로 합성한 중합체들은 광증백제로 사용되고 있다.