Polymorphic Behavior and Enzymatic Degradation of Poly(butylene adipate) in the Presence of Hexagonal Boron Nitride Nanosheets
Polymorphic Behavior and Enzymatic Degradation of Poly(butylene adipate) in the Presence of Hexagonal Boron Nitride Nanosheets
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六方氮化硼纳米片存在下聚己二酸丁二醇酯的多晶型行为和酶降解
DOI：
10.1021/ie504593z
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发表时间：
2015-02
影响因子：
4.2
通讯作者：
Guo Bao-Hua
中科院分区：
文献类型：
--
作者：
Tang Yi-Ren;Xu Jun;Guo Bao-Hua
采用化学剥离法制备了六方氮化硼纳米片。然后采用共溶液薄膜浇铸法制备了聚己二酸丁二醇酯(PBA)/BNNSs纳米复合材料。BNNSS的加入改变了PBA多晶型晶体的形成条件。差示扫描量热仪和广角X射线衍射仪的结果表明，BNNSS显著促进了α等温结晶和非等温结晶的形成。与28℃时纯PBA相比，加入0.5wt%BNSs后，α晶型在温度降至13℃时不会消失。此外，通过非等温和等温结晶过程验证了BNNSs具有良好的非均相成核能力。酶降解实验表明，PBA/BNNSs纳米复合材料的降解速率明显低于纯PBA。本工作表明，BNNSs是一种有效的调节细胞周期的材料。
Hexagonal boron nitride nanosheets (BNNSs) were prepared by a facile chemical exfoliation method. Then cosolution film casting method was used to obtain poly(butylene adipate) (PBA)/BNNSs nanocomposites. The incorporated BNNSs changed the formation condition of the polymorphic crystals of PBA. The results of differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD) showed that BNNSs significantly facilitated the formation of α-form crystals for isothermal and nonisothermal crystallization. Compared to pure PBA at 28 °C, the α-form crystals would not disappear until the temperature decreased to 13 °C with the addition of 0.5 wt % BNNSs. In addition, the excellent heterogeneous nucleation ability of BNNSs was identified by the nonisothermal and isothermal crystallization process. The enzymatic degradation experiments exhibited that PBA/BNNSs nanocomposites possessed a considerably lower degradation rate than neat PBA. This work demonstrates that BNNSs is an efficient material to regula...
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DOI：
10.1002/polb.20470
发表时间：
2005-07
期刊：
Journal of Polymer Science Part B
影响因子：
--
作者：
E. Woo;Ming-Chien Wu
通讯作者：
E. Woo;Ming-Chien Wu
影响因子：
3.1
作者：
Du, Miao;Wu, Yongzhong;Hao, Xiaopeng
通讯作者：
Hao, Xiaopeng
影响因子：
6.7
作者：
Han, Wei-Qiang;Liu, Lijia;Liu, Zhenxian
通讯作者：
Liu, Zhenxian
影响因子：
29.4
作者：
Zhi, Chunyi;Bando, Yoshio;Golberg, Dimitri
通讯作者：
Golberg, Dimitri
影响因子：
5.5
作者：
Liang, Zhichao;Pan, Pengju;Inoue, Yoshio
通讯作者：
Inoue, Yoshio