Catalytic mechanisms of triphenyl bismuth, dibutyltin dilaurate, and their combination in polyurethane-forming reaction
文献类型：期刊论文
| 作者 | Luo SG ; Tan HM ; Zhang JG ; Wu YJ ; Pei FK ; Meng XH |
| 刊名 | journal of applied polymer science
 |
| 出版日期 | 1997 |
| 卷号 | 65期号:6页码:1217-1225 |
| ISSN号 | 0021-8995 |
| 中文摘要 | the catalytic mechanisms of triphenyl bismuth (tpb), dibutyltin dilaurate (dbtdl) and their combination have been studied in a model polyurethane reaction system consisting of copolyether (tetrahydrofuran-ethyleneoxide) and n-100; nmr spectroscopy was used to detect the associations between reactants and catalysts. a relatively stable complex was shown to be formed between hydroxyl and isocyanate; the catalysts showed different effects on the isocyanate-hydroxyl complex, therefore resulting in different curing characteristics. the formation of hydrogen bonding between the complexed hydroxyl and other hydroxyl or the resulting urethane provided an ''auto-catalysis'' to urethane formation. dbtdl destroyed the isocyanate-hydroxyl complex before catalyzing the reaction through the formation of a ternary complex, whereas tpb was able to activate the isocyanate-hydroxyl complex directly to form urethane. the reaction catalyzed by the combination of tpb and dbtdl gained advantages from the multiple catalytic entities, i.e., tpb, dbtdl, and a tpb-dbtdl complex. (c) 1997 john wiley & sons, inc. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| 公开日期 | 2010-12-22 ; 2011-06-09 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/24179]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Luo SG,Tan HM,Zhang JG,et al. Catalytic mechanisms of triphenyl bismuth, dibutyltin dilaurate, and their combination in polyurethane-forming reaction[J]. journal of applied polymer science,1997,65(6):1217-1225. |
| APA | Luo SG,Tan HM,Zhang JG,Wu YJ,Pei FK,&Meng XH.(1997).Catalytic mechanisms of triphenyl bismuth, dibutyltin dilaurate, and their combination in polyurethane-forming reaction.journal of applied polymer science,65(6),1217-1225. |
| MLA | Luo SG,et al."Catalytic mechanisms of triphenyl bismuth, dibutyltin dilaurate, and their combination in polyurethane-forming reaction".journal of applied polymer science 65.6(1997):1217-1225. |
入库方式： OAI收割
来源：长春应用化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。