Goissis G, Piccirili L, Goes J C, de Guzzi Plepis A M, Das-Gupta D K
Instituto de Química de São Carlos, Universidade de São Paulo, Brazil.
Artif Organs. 1998 Mar;22(3):203-9. doi: 10.1046/j.1525-1594.1998.06109.x.
This work describes the preparation and characterization of anionic collagen composites with rhamsan and vinylidene fluoride-trifluorethylene with improved rheological and dielectric properties without loss of collagen secondary structure with an interaction occurring between both macromolecules of the composites. On a comparative basis, the force needed for the extrusion of anionic collagen:rhamsan composites was in the range from 0.088 to 0.080 J compared to that for collagen of 0.189 J. Anionic collagen:vinylidene fluoride-trifluorethylene composites were characterized, in the case of the 1:1 composite, by a pyroelectric coefficient of 1.89 x 10(-4) cm(-2) K(-1), which was significantly higher than those determined under the same conditions for native anionic collagen and vinylidene fluoride-trifluorethylene.
这项工作描述了含有鼠李聚糖和偏二氟乙烯 - 三氟乙烯的阴离子胶原蛋白复合材料的制备和表征，该复合材料具有改善的流变学和介电性能，且在复合材料的两种大分子之间发生相互作用的情况下不会损失胶原蛋白二级结构。在对比的基础上，阴离子胶原蛋白：鼠李聚糖复合材料挤出所需的力在0.088至0.080焦耳范围内，而胶原蛋白挤出所需的力为0.189焦耳。对于1:1的阴离子胶原蛋白：偏二氟乙烯 - 三氟乙烯复合材料，其热释电系数为1.89×10（-4）cm（-2）K（-1），这明显高于在相同条件下测定的天然阴离子胶原蛋白和偏二氟乙烯 - 三氟乙烯的热释电系数。
