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Effects of isomorphic poly(butylene succinate-co-butylene fumarate) on the nucleation of poly(butylene succinate) and the formation of poly(butylene succinate) ring-banded spherulites†
CrystEngComm ( IF 2.6 ) Pub Date : 2018-02-05 00:00:00 , DOI: 10.1039/c7ce02124k
Yue Zheng 1, 2, 3, 4, 5 , Gengkun Tian 1, 2, 3, 4, 5 , Jinxin Xue 1, 2, 3, 4, 5 , Jianjun Zhou 1, 2, 3, 4, 5 , Hong Huo 1, 2, 3, 4, 5 , Lin Li 1, 2, 3, 4, 5
Affiliation  

The nsucleation effects of isomorphic poly(butylene succinate-co-butylene fumarate)s (PBSFs) on poly(butylene succinate) (PBS) were investigated using differential scanning calorimetry (DSC) and polarized optical microscopy (POM). When the content of PBSF is fixed at 2.0 wt% in the PBSF/PBS blends, the nucleation efficiency of PBSF is related to the BF molar ratio in PBSF. Nucleation efficiency is not observed when the molar ratio of BF is ≤5%; the nucleation efficiency is weak when the molar ratio of BF is between 10% and 30% and the nucleation efficiency is strong when the molar ratio of BF is ≥40%. In fixing the nucleating agent as PBSF-5 (the BF molar ratio of PBSF is 5%), the nucleation efficiency of PBSF-5 is related to its content in the PBSF-5/PBS blends. Nucleation efficiency is not observed when the content of PBSF-5 is ≤2.0 wt% and the nucleation efficiency strengthens dramatically when the content of PBSF-5 is ≥5.0 wt%. POM images reveal the changes of PBS ring-banded spherulites in the PBSF/PBS blends. The band spacing of PBS in the PBSF/PBS blends decreases with the increase of the BF molar ratio of PBSF or the content of PBSF-5. The cell parameters of the PBSF nucleating agent are important in the formation of PBS ring-banded spherulites. No PBS ring-banded spherulite forms when the BF molar ratio of PBSF is ≥40%. In the PBSF-5/PBS blends, the crystallization temperature range of the ring-banded spherulite formation gradually narrows when the content of PBSF-5 is ≥5.0 wt%. In this work, clarifying the slight structure difference of isomorphic PBSFs on the epitaxial nucleation and the formation of PBS ring-banded spherulites is advantageous.

中文翻译:

同构聚(亚丁基琥珀酸盐的影响聚(丁二酸丁二醇酯)的成核丁烯富马酸酯)和聚(丁二酸丁二醇酯)的形成环带状的球晶

同构聚nsucleation影响(丁烯琥珀酸盐合作使用差示扫描量热法(DSC)和偏振光学显微镜(POM)研究了聚丁二酸丁二酯(PBS)上的富马酸丁二烯酯(PBSFs)。当在PBSF / PBS共混物中将PBSF的含量固定为2.0重量%时,PBSF的成核效率与PBSF中的BF摩尔比有关。BF的摩尔比≤5%时,没有观察到成核效率。当BF的摩尔比在10%至30%之间时,成核效率较弱;当BF的摩尔比≥40%时,成核效率较高。在将成核剂固定为PBSF-5(PBSF的BF摩尔比为5%)时,PBSF-5的成核效率与其在PBSF-5 / PBS共混物中的含量有关。当PBSF-5的含量≤2时,没有观察到成核效率。当PBSF-5的含量≥5.0wt%时,含量为0 wt%,成核效率显着增强。POM图像揭示了PBSF / PBS共混物中PBS环带状球晶的变化。PBSF / PBS共混物中PBS的带间距随着PBSF BF摩尔比或PBSF-5含量的增加而减小。PBSF成核剂的细胞参数在PBS环带状球晶的形成中很重要。PBSF的BF摩尔比≥40%时,不会形成PBS环带球晶。在PBSF-5 / PBS共混物中,当PBSF-5的含量≥5.0wt%时,环带球晶形成的结晶温度范围逐渐变窄。在这项工作中,阐明同晶型PBSF在外延形核上的微小结构差异和PBS环带状球晶的形成是有利的。POM图像揭示了PBSF / PBS共混物中PBS环带状球晶的变化。PBSF / PBS共混物中PBS的带间距随着PBSF BF摩尔比或PBSF-5含量的增加而减小。PBSF成核剂的细胞参数在PBS环带状球晶的形成中很重要。PBSF的BF摩尔比≥40%时,不会形成PBS环带球晶。在PBSF-5 / PBS共混物中,当PBSF-5的含量≥5.0wt%时,环带球晶形成的结晶温度范围逐渐变窄。在这项工作中,阐明同晶型PBSF在外延形核上的微小结构差异和PBS环带状球晶的形成是有利的。POM图像揭示了PBSF / PBS共混物中PBS环带状球晶的变化。PBSF / PBS共混物中PBS的带间距随着PBSF BF摩尔比或PBSF-5含量的增加而减小。PBSF成核剂的细胞参数在PBS环带状球晶的形成中很重要。PBSF的BF摩尔比≥40%时,不会形成PBS环带球晶。在PBSF-5 / PBS共混物中,当PBSF-5的含量≥5.0wt%时,环带球晶形成的结晶温度范围逐渐变窄。在这项工作中,阐明同晶型PBSF在外延形核上的微小结构差异和PBS环带状球晶的形成是有利的。PBSF / PBS共混物中PBS的带间距随着PBSF BF摩尔比或PBSF-5含量的增加而减小。PBSF成核剂的细胞参数在PBS环带状球晶的形成中很重要。PBSF的BF摩尔比≥40%时,不会形成PBS环带球晶。在PBSF-5 / PBS共混物中,当PBSF-5的含量≥5.0wt%时,环带球晶形成的结晶温度范围逐渐变窄。在这项工作中,阐明同晶型PBSF在外延形核上的微小结构差异和PBS环带状球晶的形成是有利的。PBSF / PBS共混物中PBS的带间距随着PBSF BF摩尔比或PBSF-5含量的增加而减小。PBSF成核剂的细胞参数在PBS环带状球晶的形成中很重要。PBSF的BF摩尔比≥40%时,不会形成PBS环带球晶。在PBSF-5 / PBS共混物中,当PBSF-5的含量≥5.0wt%时,环带球晶形成的结晶温度范围逐渐变窄。在这项工作中,阐明同晶型PBSF在外延形核上的微小结构差异以及PBS环带状球晶的形成是有利的。PBSF的BF摩尔比≥40%时,不会形成PBS环带球晶。在PBSF-5 / PBS共混物中,当PBSF-5的含量≥5.0wt%时,环带球晶形成的结晶温度范围逐渐变窄。在这项工作中,阐明同晶型PBSF在外延形核上的微小结构差异和PBS环带状球晶的形成是有利的。PBSF的BF摩尔比≥40%时,不会形成PBS环带球晶。在PBSF-5 / PBS共混物中,当PBSF-5的含量≥5.0wt%时,环带球晶形成的结晶温度范围逐渐变窄。在这项工作中,阐明同晶型PBSF在外延形核上的微小结构差异和PBS环带状球晶的形成是有利的。
更新日期:2018-02-05
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