Design of New Cardanol Derivative: Synthesis and Application as Potential Biobased Plasticizer for Poly(lactide)
Design of New Cardanol Derivative: Synthesis and Application as Potential Biobased Plasticizer for Poly(lactide)
复制标题
DOI：
10.1002/mame.201600190
复制
发表时间：
2016-10-01
影响因子：
3.9
通讯作者：
Dubois, Philippe
中科院分区：
文献类型：
--
作者：
Hassouna, Fatima;Mihai, Iulia;Dubois, Philippe
针对聚乳酸（PLA）设计了一种由腰果酚制成的新型生物基增塑剂。这种腰果酚衍生的增塑剂，即，甲氧基化羟乙基腰果酚（MeCard）是通过腰果酚侧链上双键的甲氧基化反应合成的，其结构经核磁共振氢谱和质谱表征。评价MeCard对PLA的分子结构、形态、热和机械性能的增塑作用，并与商业腰果酚，即，羟乙基腰果酚（pCard）。MeCard的增塑效率通过与纯PLA相比玻璃化转变温度和储能模量的显著降低以及断裂伸长率的显著增加来证明。此外，MeCard对PLA的增塑性能高于pCard。这种行为与PLA和MeCard之间的更高的相容性和相容性有关，这归因于腰果酚侧链上双键的甲氧基化，如SEM显微照片所示。
A novel biobased plasticizer made of cardanol is designed for poly(lactide) (PLA). This cardanol-derived plasticizer, i.e., methoxylated hydroxyethyl cardanol (MeCard), is synthesized through methoxylation of the double bonds on the side chain of cardanol, and characterized by H-1 NMR and mass spectrometry. The plasticization effect of MeCard on the molecular structure, morphology, thermal and mechanical properties of PLA is evaluated and compared to that of a commercial cardanol, i.e., hydroxyethyl cardanol (pCard). The plasticization efficiency of MeCard is demonstrated by a substantial decrease of the glass transition temperature and storage modulus together with a significant increase of the elongation at break as compared to neat PLA. Moreover, MeCard exhibits higher plasticization performance than pCard toward PLA. Such behavior is related to a higher miscibility and compatibility between PLA and MeCard thanks to the methoxylation of the double bonds on the side chain of cardanol as shown by SEM micrographs.