• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Synthesis of copolyesters with bio-based lauric diacid: structure and physico-mechanical studies
【24h】

Synthesis of copolyesters with bio-based lauric diacid: structure and physico-mechanical studies

机译：基于生物的月桂二酸的共聚酯共聚酯的合成：结构和物理机械研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Lauric diacid (LCDA), also known as 1,12-dodecanedioic acid, is used to develop a series of copolyesters along with 1,4-cyclohexanedicarboxylic acid (CHDA) and 1,4-butanediol (BDO). The resulting poly(butylene lauric dicarboxylate-co-butylene 1,4-cyclohexanedicarboxylate) (PBLC) is proved to be a random copolyester with three triad sequences. When the LCDA content increases from 20 to 60 mol%, T-m of the copolyester decreases from 133 to 57 degrees C. At the same time, the tensile modulus and strength decrease from 94 and 14 MPa to 40 and 5 MPa, respectively. Moreover, the elongation at break also drops from 640 to only 50%. However, further increasing the LCDA content to 80 mol%, the copolyester becomes amorphous with no Tm, and its tensile modulus, strength, and the elongation at break all improve significantly to 68 and 7 MPa, and over 1400%, respectively. More importantly, for the homo-polymer poly(butylene lauric dicarboxylate) (PBL), it has a relatively high T-m of 73 degrees C compared to that of polycaprolactone (PCL), but lower tensile modulus and strength, and significantly higher ductility, compared to those of PCL, linear low density polyethylene, and polybutylene succinate.
机译：也称为1,12-十二烷基甲酸的月桂酸二甲酰（LCDA）用于开发一系列共聚酯以及1,4-环己烷羧酸（CHDA）和1,4-丁二醇（BDO）。得到的聚（丁基月桂羧酸二羧酸叔丁酯1,4-环己烷二羧酸丁酯）（PBLC）被证明是具有三种三元序列的随机共聚酯。当LCDA含量从20〜60摩尔％增加时，共聚酯的T-M从133℃降低到57℃，同时，拉伸模量和强度分别从94和14MPa降至40和5MPa。此外，突破的伸长率也从640降至仅50％。然而，进一步将LCDA含量增加到80摩尔％，共聚酯与NO TM变为无定形，其拉伸模量，强度和断裂的伸长率分别为68和7MPa，分别超过1400％。更重要的是，对于均聚合物聚（丁烯月桂二羧酸丁酯）（PBL），与聚己内酯（PCL）相比，它具有73℃的相对高的Tm，但较低的拉伸模量和强度，以及显着更高的延展性，比较对于PCL，线性低密度聚乙烯和聚丁烯琥珀酸盐的那些。

著录项

  • 来源
    《RSC Advances》 |2017年第87期|共9页
  • 作者

    Chen Meiling; Saada Nesren A. H.; Liu Fei; Na Haining; Zhu Jin;

  • 作者单位

    Zhejiang Ocean Univ Coll Food &

    Pharm Zhoushan 316000 Zhejiang Peoples R China;

    Zhejiang Ocean Univ Coll Food &

    Pharm Zhoushan 316000 Zhejiang Peoples R China;

    Chinese Acad Sci Key Lab Biobased Polymer Mat Zhejiang Prov Ningbo Inst Mat Technol &

    Engn Ningbo 315201 Zhejiang Peoples R China;

    Chinese Acad Sci Key Lab Biobased Polymer Mat Zhejiang Prov Ningbo Inst Mat Technol &

    Engn Ningbo 315201 Zhejiang Peoples R China;

    Chinese Acad Sci Key Lab Biobased Polymer Mat Zhejiang Prov Ningbo Inst Mat Technol &

    Engn Ningbo 315201 Zhejiang Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号