发明名称 |
Polyoxymethylene Nanoparticles |
摘要 |
The synthesis of nanoparticles based on hyperbranched-linear-hyperbranched ABA triblock copolymers with hyperbranched polyglycerol (hbPG) as A-block and linear poly(oxymethylene) as B-block is described. The acid-degradable nanoparticles were formed in a facile process, combining a solvent evaporation process with the miniemulsion technique resulting in particles with a diameter in the range of 190 to 250 nm and a standard deviation of ˜30% determined with DLS and SEM. The nanoparticles were placed on a silicon wafer and sintered leading to films with a thickness in the μm-range investigated via SEM. The surface properties of these films were investigated via static contact angle measurements at the liquid/vapor interface. The contact angle decreases from 67° for the polymer with two hydroxyl groups to 29° for the polymer with 16 hydroxyl groups, confirming the influence of the polymer structure and size of the hbPG block on the surface properties. |
申请公布号 |
US2016272807(A1) |
申请公布日期 |
2016.09.22 |
申请号 |
US201615074534 |
申请日期 |
2016.03.18 |
申请人 |
Ticona GmbH |
发明人 |
Haubs Michael;Kurz Klaus;Bannwarth Markus B.;Landfester Katharina;Wurm Frederik R.;Frey Holger;Klein Rebecca |
分类号 |
C08L59/04;C08G2/08;C08G2/22;C08L59/02 |
主分类号 |
C08L59/04 |
代理机构 |
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代理人 |
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主权项 |
1. Polymer particles comprising polyoxymethylene nanoparticles, the nanoparticles having an average particle size of from about 20 nm to about 700 nm as measured by dynamic light scattering. |
地址 |
Sulzbach DE |