典型文献
Controllable Synthesis of a Well-defined Polypropylene grafted Silica Nanoparticles and Its Effect on Crystallization Behavior of Polypropylene
文献摘要：
Well-defined polypropylene grafted silica nanoparticles(PP-g-SiO2)were prepared through the reaction of maleic anhydride grafted polypropylene(PP-g-MAH)with amino-functionalized silica(SiO2-NH2)by the'grafting-to'method.The grafting density of PP-g-SiO2 is found to be controlled by the concentration of silane coupling agent 3-[2-(2-aminoethylamino)ethyl amino]propyl trimethoxy silane(TAMS).The maximum grafting density of grafted PP-g-MAH chains with molecular weight of 9100 g/mol could reach 0.34 chains/nm2,when the critical concentration of TAMS was 0.0194 mol/L.The critical concentration of TAMS can be explained by the maximum amounts of primary amino groups,which can totally react with PP-g-MAH on the surface of SiO2-NH2,when the silane monolayer is formed.The synthesized PP-g-SiO2 with different molecular weights was mixed with PP by solution mixing to form a series of nanocomposites.The crystallization temperature(Tc)of nanocomposites increased significantly with the particle loading.The PP-g-SiO2 with high molecular weight of grafted chains exhibits a high nucleation ability at 1 wt％nanoparticle loading in PP/PP-g-SiO2 nanocomposites.In summary,we provide an effective method to synthesize the well-defined PP-g-SiO2 with controlled grafting density,which shows excellent nucleation ability.
文献关键词：
中图分类号：
作者姓名：
Wei-Long Ju;Shao-Fan Li;Yun-Lan Su;Du-Jin Wang
作者机构：
Key Laboratory of Engineering Plastics,Beijing National Laboratory for Molecular Sciences,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China
文献出处：
引用格式：
[1]Wei-Long Ju;Shao-Fan Li;Yun-Lan Su;Du-Jin Wang-.Controllable Synthesis of a Well-defined Polypropylene grafted Silica Nanoparticles and Its Effect on Crystallization Behavior of Polypropylene)[J].高分子科学（英文版）,2022(11):1411-1421
A类：
aminoethylamino
B类：
Controllable,Synthesis,Well,defined,Polypropylene,grafted,Silica,Nanoparticles,Its,Effect,Crystallization,Behavior,polypropylene,silica,nanoparticles,PP,SiO2,were,prepared,through,reaction,maleic,anhydride,MAH,functionalized,NH2,by,grafting,method,density,found,be,controlled,concentration,silane,coupling,agent,trimethoxy,TAMS,maximum,chains,molecular,could,reach,nm2,when,critical,was,explained,amounts,primary,groups,which,totally,surface,monolayer,formed,synthesized,different,weights,mixed,solution,mixing,series,nanocomposites,crystallization,temperature,Tc,increased,significantly,loading,high,exhibits,nucleation,ability,wt,In,summary,provide,effective,well,shows,excellent
AB值：
0.461208
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