2-Phenyl-4-methylene-1,3-dioxolane의 광개시 라디칼 중합

박민규; 김병구; 공명선; 조의환

Polymer(Korea), Vol.15, No.2, 201-206, April, 1991

Export Citation

2-Phenyl-4-methylene-1,3-dioxolane의 광개시 라디칼 중합

Photoinitiated Free Radical Polymerization of 2-Phenyl-4-methylene-1,3-dioxolane

박민규, 김병구, 공명선, 조의환

초록

2-Pheny-4-methylene-1, 3-dioxolane(2-PMDO)을 benzoin methylether 존재하에 광개시라디칼 중합(254nm)을 시킨 결과, 개환이 지배적인 중합체를 66%의 수율로 얻었다. 125℃에서 di-t-butyl peroxide를 사용한 라디칼 중합에 의해서는 비닐, 개환, 탈 리가 혼합되어 일어난 구조를 가진 중합체를 얻었다. 2-PMDO는 benzoin methylether 존재하에서 254nm의 광을 조사한 공중합에 있어서 acrylonitrile, methyl methacrylate등과 쉽게 공중합되어 거의 개환되지 않은 단위를 포함하는 공중합체가 얻어졌다. Acrylonitrile과 2-PMDO의 공중합시 두 모노머 단위의 구성비는 혼합비에 관계없이 두비의 차이가 크지않았으며 반면에, methyl methacrylate와의 공중합체들은 같은 조건에서 methyl methacrylate의 단위가 우세한 공중합체가 얻어졌다.

2-Phenyl-4-methylene-1, 3-dioxolane(2-PMDO) underwent photoinitiated free radical ring-opening polymerization with benzoin methylether at 254nm to yield the polymer in 66% of conversion with virtually exclusive ring-opening. On the other hand, thermal free radical polymerization with di-t-butyl peroxide at 125℃ generated the polymer with mixed modes of polymerization ; vinyl, ring-opening and elimination polymerization. In copolymerization, 2-PMDO was shown to copolymerize readily with acrylonitrile, methyl methacrylate in the presence of benzoin methylether at 254nm to produce copolymer containing most of unopened unit. The ratios of two monomer units of copolymer of 2-PMDO with acrylonitrile varied insignificantly as the feed ratio change, whereas the copolymer with methyl methacylate were predominantly composed of methyl methacylate unit.

[References]

Wu SR, Ni Z, Biley WJ, Makromol. Chem., 183, 1913 (1982)
Gong MS, Cho I, J. Polym. Sci. C: Polym. Lett., 20, 361 (1982)
Ni Z, Wu SR, Bailey WJ, J. Polym. Sci. A: Polym. Chem., 20, 2420 (1920)
Ni Z, Wu SR, Bailey WJ, Macromolecules, 15, 711 (1982)
Cho I, Gong MS, Polym.(Korea), 9(6), 503 (1985)
Bailey WJ, Polym. Prepr.(Am. Chem. Soc. Div. Polym. Chem.), 25(2), 210 (1984)
Chang SI, Gong MS, Cho I, Makromol. Chem. Rapid Commun., 10, 201 (1989)
Endo T, Okawara M, Yamazaki N, Bailey WJ, J. Polym. Sci. A: Polym. Chem., 19, 1283 (1981)
Endo T, Bailey WJ, J. Polym. Sci. C: Polym. Lett., 18, 25 (1980)
Endo T, Okawara M, Azuma K, Nate K, Yokono H, Bailey WJ, J. Polym. Sci. C: Polym. Lett., 21, 373 (1983)
Yako N, Azuma K, Nate K, Endo T, Makromol. Chem., 186, 1543 (1985)
Pan CY, Wu Z, Bailey WJ, J. Polym. Sci. C: Polym. Lett., 25, 243 (1987)
Fukuda H, Hirota M, Nakashima Y, J. Polym. Sci. A: Polym. Chem., 20, 1402 (1982)
Han YK, Choi SK, J. Polym. Sci. A: Polym. Chem., 21, 171 (1983)
Wang Y, Pan CY, Polym. Prepr.(Am. Chem. Soc. Div. Polym. Chem.), 31(2), 661 (1990)

[Referenced By]

[1] Wu SR, Ni Z, Biley WJ, Makromol. Chem., 183, 1913 (1982)

[2] Gong MS, Cho I, J. Polym. Sci. C: Polym. Lett., 20, 361 (1982)

[3] Ni Z, Wu SR, Bailey WJ, J. Polym. Sci. A: Polym. Chem., 20, 2420 (1920)

[4] Ni Z, Wu SR, Bailey WJ, Macromolecules, 15, 711 (1982)

[5] Cho I, Gong MS, Polym.(Korea), 9(6), 503 (1985)

[6] Bailey WJ, Polym. Prepr.(Am. Chem. Soc. Div. Polym. Chem.), 25(2), 210 (1984)

[7] Chang SI, Gong MS, Cho I, Makromol. Chem. Rapid Commun., 10, 201 (1989)

[8] Endo T, Okawara M, Yamazaki N, Bailey WJ, J. Polym. Sci. A: Polym. Chem., 19, 1283 (1981)

[9] Endo T, Bailey WJ, J. Polym. Sci. C: Polym. Lett., 18, 25 (1980)

[10] Endo T, Okawara M, Azuma K, Nate K, Yokono H, Bailey WJ, J. Polym. Sci. C: Polym. Lett., 21, 373 (1983)

[11] Yako N, Azuma K, Nate K, Endo T, Makromol. Chem., 186, 1543 (1985)

[12] Pan CY, Wu Z, Bailey WJ, J. Polym. Sci. C: Polym. Lett., 25, 243 (1987)

[13] Fukuda H, Hirota M, Nakashima Y, J. Polym. Sci. A: Polym. Chem., 20, 1402 (1982)

[14] Han YK, Choi SK, J. Polym. Sci. A: Polym. Chem., 21, 171 (1983)

[15] Wang Y, Pan CY, Polym. Prepr.(Am. Chem. Soc. Div. Polym. Chem.), 31(2), 661 (1990)