摘要
在60℃下、苯溶液中,以偶氮二异丁腈为引发剂,甲基丙烯酸三丁基锡酯(TBTM)分别与甲基丙烯酸叔丁酯(TBMA)及甲基丙烯酸三苯基甲酯(TPCM)进行自由基共聚反应。用 FTIR光谱仪测定了其竞聚率,r_1(TBTM)=0.28,r_2(TBMA)=0.83;r_1(TBTM)=0.83,r_2(TPCM)=0.45。认为影响这类单体共聚活性的主要因素是单体分子结构中的取代基的体积效应、空间位阻和极性。
The radical copolymerizations of t -butyl methacrylate (TBMA) and triphenyl methyl methacrylate (TPCM)with tributyltin methacrylate (TBTM) have been carried out separately in ben-zene at 60 C using AIBN as intiator. The reactivity ratios of the monomers have been determined by FTIR as follows: r1 (TBTM) = 0. 28, r2 (TBMA) = 0. 83 and r1 (TBTM) = 0. 83, r2 (TPCM) = 0. 45. It is considered that the predominant factors on copolyrnerization reactivity of monomer are size,steric effect, and polarity of substituent in monomer structure.
出处
《精细石油化工进展》
CAS
2000年第8期1-5,共5页
Advances in Fine Petrochemicals
关键词
甲基丙烯酸三丁基锡酯
有机锡
涂料
竞聚率
共聚
tributyltin methacrylate, copolymerization, t -butyl methacrylate, triphenyl methyl methacrylate, reactivity ratio
