PHENYLSILANE의 존재하에서 HEMA(2-Hydroxyethylmethacrylate)의 중합

POLYMERIZATION OF HEMA IN THE PRESENCE OF PHENYLSILANES

Phenylsilane들과 2-Hydroxyethylmethacrylate(HEMA)의 광중합은 말단기에 phenylsilyl기를 포함하고 있는 poly(HEMA)s를 생성시킴으로써 열중합과 같은 결과를 보였다. 중합반응 동안에 실란의 몰비율이 증가함에 따라 중합수율과 고유점도는 감소하였으며, TGA 잔여수율과 Si-H IR 신축띠의 상대적 세기는 증가하는 경향을 보였다. phenylsilanne은 HEMA와의 광중합 반응에서 연쇄개시제와 전달물질로 중요한 영향을 주었다.

The bulk photopolymerization of 2-hydrxyethylmethacrylate(HDMA) with phenylsilane was perforemed to produce poly(HEMA)s containing phenylsilyl moiety presumably as an end group. This result, are the same as that of thermal polymerization. It was found that while the polymerization yields and intrinsic viscosities decreased, the TGA residue yields and the relative intensities of SiH IR stretching bands increased with increasing molar ratio of phenylsilane over HEMA. The phenylsilane seemed to significantly influence on the photopolymerization as both chain initiation and chain transfer agents.