中文摘要：

等温的结晶化上的一个新奇活跃起核心作用代理人(TBC8-eb ) 的效果(L 乳的酸)(PLLA ) 被微分扫描热量测定(DSC ) 和 Fourier 变换 poly 学习红外线的光谱学(FTIR ) 。动力学上的分析证明 TBC8-eb 不能仅仅加速结晶化率而且把大多数 PLLA 的原来的球粒晶体转变成像捆的晶体。而且，与 TBC8-eb 合拢 PLLA 和 PLLA 的(e) 的免费精力是 0.15 和 0.06 J 湩摥醨? 醨? è

英文摘要：

The effect of a novel active nucleating agent（TBC8-eb） on the isothermal crystallization of poly（L-lactic acid） （PLLA） was studied by differential scanning calorimetry（DSC） and Fourier transform infrared spectroscopy（FTIR） . The analysis on kinetics demonstrates that TBC8-eb can not only accelerate the crystallization rate but also transform most of the original spherulite crystals of PLLA into sheaf-like crystals. Furthermore,the free energy of folding（σe） of PLLA and PLLA with TBC8-eb is 0.15 and 0.06 J·m-2,respectively,which suggests that the addition of TBC8-eb favors the regular folding of molecule chains in the crystallization of PLLA,improv-ing its crystallization rate. The FTIR results show that TBC8-eb can accelerate the conformational ordering of PLLA in the isothermal crystallization. The conformational ordering of PLLA nucleated with TBC8-eb begins with the interchain interaction of CH3,and then a short helix emerges where a couple of CH3 groups interact.