化学通报（网络版）
化學通報（網絡版）
화학통보（망락판）
Chemistry Online
2007年
1期
,共1页
(2-丙烯酰胺基)%乙基十四烷基二甲基溴化铵%表面活性单体%聚合动力学%活化能
(2-丙烯酰胺基)%乙基十四烷基二甲基溴化銨%錶麵活性單體%聚閤動力學%活化能
(2-병희선알기)%을기십사완기이갑기추화안%표면활성단체%취합동역학%활화능
(2-Acrylamido)ethyltetradecyldimethylammonium bromide%Surfmer%Kinetic mechanism%Active energy
采用溴酸钾-溴化钾法研究了阳离子型表面活性单体（2－丙烯酰胺基）乙基十四烷基二甲基溴化铵（AMC14AB）在水溶液中的均聚合动力学，分别考察了引发剂浓度与单体浓度对聚合速率的影响，确定了聚合速率方程，分析了均聚合机理，考察了温度对均聚合反应的影响，测定了聚合表观活化能。研究结果表明，由于AMC14AB 在水溶液中的胶束化行为，使其具有较快的聚合速率，于60℃下聚合，40min 内转化率即可达到80%以上；AMC14AB 聚合速率方程为0.92 0.48 p R = k[M] [I] ，说明链终止为双基终止方式，引发过程与单体无关；聚合表观活化能为80.72kJ/mol。
採用溴痠鉀-溴化鉀法研究瞭暘離子型錶麵活性單體（2－丙烯酰胺基）乙基十四烷基二甲基溴化銨（AMC14AB）在水溶液中的均聚閤動力學，分彆攷察瞭引髮劑濃度與單體濃度對聚閤速率的影響，確定瞭聚閤速率方程，分析瞭均聚閤機理，攷察瞭溫度對均聚閤反應的影響，測定瞭聚閤錶觀活化能。研究結果錶明，由于AMC14AB 在水溶液中的膠束化行為，使其具有較快的聚閤速率，于60℃下聚閤，40min 內轉化率即可達到80%以上；AMC14AB 聚閤速率方程為0.92 0.48 p R = k[M] [I] ，說明鏈終止為雙基終止方式，引髮過程與單體無關；聚閤錶觀活化能為80.72kJ/mol。
채용추산갑-추화갑법연구료양리자형표면활성단체（2－병희선알기）을기십사완기이갑기추화안（AMC14AB）재수용액중적균취합동역학，분별고찰료인발제농도여단체농도대취합속솔적영향，학정료취합속솔방정，분석료균취합궤리，고찰료온도대균취합반응적영향，측정료취합표관활화능。연구결과표명，유우AMC14AB 재수용액중적효속화행위，사기구유교쾌적취합속솔，우60℃하취합，40min 내전화솔즉가체도80%이상；AMC14AB 취합속솔방정위0.92 0.48 p R = k[M] [I] ，설명련종지위쌍기종지방식，인발과정여단체무관；취합표관활화능위80.72kJ/mol。
The polymerization kinetics of （ 2-acrylamido ） ethyltetradecyldimethylammonium bromide (AMC14AB) in aqueous solution has been studied with KBrO3-KBr method.The effects of initiator concentrations, monomer concentrations and temperature on kinetics of AMC14AB polymerization in aqueous solutions have been studied, the polymerization rate equation was determined, and the polymerization active energy was measured. At the same time the polymerization mechanism was shown. The research indicated that the polymerization rate equation for AMC14AB is 0.92 0.48 p R = k[M] [I ] which displays that the chain termination reaction is according to the bimolecular mode, and the intitate process is independent on monomer concentration, and the apparent polymerization active energy is 80.72 kJ/mol. The reaction mechanism can explain the ploymerization process correctly.
