Spontaneous alternating copolymerization of N-phenylmaleimide with ethyl α-phenylacrylate

✍ Scribed by Decheng Wan; Lianjun Shi; Junlian Huang

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 128 KB
• Volume: 36
• Category: Article
• ISSN: 0887-624X
• DOI: 10.1002/(sici)1099-0518(19981130)36:16<2927::aid-pola11>3.0.co;2-o

✦ Synopsis

The spontaneous copolymerization of N-phenylmaleimide (NPMI) (M 1 ) with ethyl ␣-phenylacrylate (EPA)(M 2 ) were carried out in dioxane at 85°C. A high alternating tendency was observed. The monomer reactivity ratios were r 1 ϭ 0.07 Ϯ 0.01 and r 2 ϭ 0.09 Ϯ 0.02. The maximum copolymerization rate and molecular weight occurs at 70 -80 mol% (M 1 ) in feed ratio. The spontaneous alternating copolymerization is considered to be carried out via a contact-type charge transfer complex (CTC) formed between the monomers. Thermogravimetric analyses (TGA) indicate the resulting copolymers have high thermal stability.