|本期目录/Table of Contents|

[1]李世红,吴君飞,金玉顺?鄢,等.聚L-丙交酯-ε-己内酯/DL-丙交酯共聚物-聚L-丙交酯热塑性弹性体的制备及表征[J].合成橡胶工业,2022,5:351-356.
 LI Shi-hong,WU Jun-fei,JIN Yu-shun,et al.Preparation and characterization of poly (L-lactide)-ε-caprolactone / DL-lactide copolymer-poly(L-lactide) thermoplastic elastomers[J].China synthetic rubber industy,2022,5:351-356.
点击复制

聚L-丙交酯-ε-己内酯/DL-丙交酯共聚物-聚L-丙交酯热塑性弹性体的制备及表征(PDF)

《合成橡胶工业》[ISSN:1000-1255/CN:62-1036/TQ]

期数:
2022年5期
页码:
351-356
栏目:
出版日期:
2022-09-15

文章信息/Info

Title:
Preparation and characterization of poly (L-lactide)-ε-caprolactone / DL-lactide copolymer-poly(L-lactide) thermoplastic elastomers
文章编号:
1000-1255(2022)05-0351-06
作者:
李世红吴君飞金玉顺?鄢伍一波连慧琴
北京石油化工学院 新材料与化工学院/特种弹性体复合材料北京市重点实验室, 北京 102617
Author(s):
LI Shi-hong WU Jun-fei JIN Yu-shun WU Yi-bo LIAN Hui-qin
School of New Materials and Chemical Engineering/Beijing Key Laboratory of Special Elastomeric Composite Materials, Beijing Institute of Petrochemical Technology, Beijing 102617, China
关键词:
ε-己内酯DL-丙交酯L-丙交酯开环聚合热塑性弹性体嵌段共聚物
Keywords:
ε-caprolactone DL-lactide L-lactide ring-opening polymerization thermoplastic elastomer block copolymer
分类号:
TQ 334.9
DOI:
DOI:10.19908/j.cnki.ISSN1000-1255.2022.05.0351
文献标识码:
A
摘要:
以辛酸亚锡为催化剂,1,4-丁二醇为引发剂,将ε-己内酯与DL-丙交酯进行开环聚合制备两端带有羟基的ε-己内酯和DL-丙交酯共聚物(PCDLA-OH预聚物),然后以PCDLA-OH预聚物引发L-丙交酯开环聚合制备两端为聚L-丙交酯链段,中间为ε-己内酯和DL-丙交酯共聚物链段的三嵌段共聚物(PLLA-b-PCDLA-b-PLLA),并对嵌段共聚物的结构与性能进行了测试。结果表明,PCDLA-OH预聚物中DL-丙交酯的用量越大,预聚物逐渐从部分结晶转变为无定形聚合物,玻璃化转变温度逐渐升高。当DL-丙交酯与ε-己内酯的摩尔比为3/10,PCDLA-OH预聚物与L-丙交酯的质量比为1/5时,所制备的PLLA-b-PCDLA-b-PLLA的扯断伸长率为204%,拉伸强度为4.77 MPa。
Abstract:
Using stannous octanoate as catalyst and 1,4-butanediol as initiator, ring-opening polymerization of ε-caprolactone and DL-lactide was carried out to prepare ε-caprolactone and DL-lactide copolymer with hydroxyl groups at both ends (PCDLA-OH prepolymer), and then L-lactide ring-opening polymerization was initiated by PCDLA-OH prepolymer to prepare triblock copolymer with poly L-lactide segments at both ends and ε-caprolactone and DL-lactide copolymer in the middle (PLLA-b-PCDLA-b-PLLA) was prepared, and the structure and properties of the block copolymer were tested. The results showed that the larger the amount of DL-lactide in PCDLA-OH prepolymer, the prepolymer gradually changed from partial crystallization to amorphous polymer, and the glass transition tempe-rature gradually increased. When the mole ratio of DL-lactide to ε-caprolactone was 3/10 and the mass ratio of PCDLA-OH prepolymer to L-lactide was 1/5, the elongation at break and tensile strength of the prepared PLLA-b-PCDLA-b-PLLA were 204% and 4.77 MPa.

参考文献/References

[1] 韩吉彬,陈文泉,张世甲,等. 热塑性弹性体的研究与进展[J]. 弹性体,2020,30(3):70-77.[2] 王辉. 环境友好型热塑性弹性体的研究进展[J]. 广东化工,2014,41(5):113-114. [3] 燕四伟,王庆国,王兆山. 生物降解热塑性弹性体的分子结构设计与性能研究[J]. 中国科学:化学,2019,49(12):1463-1474.[4] 崔靖国,陈璨,杨洋,等. 医用级聚乳酸合成及改性研究进展[J]. 化工新型材料,2020,48(10):268-272.[5] Ji Fan, Li Jianbo, Weng Yunxuan, et al. Synthesis of PLA-based thermoplastic elastomer and study on preparation and properties of PLA-based shape memory polymers[J]. Materials Research Express,2019,7(1): 1-14. [6] 陈宇飞,刘宏治,魏金光,等. 聚乳酸热塑性弹性体的研究进展[J]. 高分子通报,2015(5):21-35.[7] 张魏,杨丹,王萍,等. ε-己内酯与DL-丙交酯共聚物的体内降解性能[J]. 中国组织工程研究,2012,16(38):7131-7134.[8] 张魏,杨丹,杨立群,等. ε-己内酯与DL-丙交酯共聚物的体外降解性能研究[J]. 化工新型材料,2014,42(9):144-148.[9] 杨立群,杨丹,李建新,等. ε-己内酯/D,L-丙交酯共聚物的非等温结晶动力学研究[J]. 中国组织工程研究,2012,16(25):4654-4658.[10] Yang Liqun, Meng Shu, Liu Danhua, et al. Potential biodegradable implants from -caprolactone and D, L-lactide copolymers: Synthesis, properties, and in vivo degradation[J]. International Journal of Polymer Analysis & Characterization,2014,19(5):422-440.[11] Jeon Oju, Lee S H, Kim S H, et al. Synthesis and characterization of poly(L-lactide) poly(ε-caprolactone) multiblock copolymers[J]. Macromolecules,2003,36(15):5585-5592.[12] 戈彬,贾永堂. ε-己内酯-DL-丙交酯二元无序共聚物的合成与表征[J]. 辽宁化工,2009,38(8):531-534.[13] 吴艾,陈龙,熊左春,等. 聚(ε-己内酯-co-L-丙交酯)/聚L-乳酸复合材料的制备与性能研究[J]. 塑料工业,2014,42(2):47-51.[14] 张涵,孙志强,庞烜,等. 聚(ε-己内酯-L-丙交酯)无规共聚物与聚乳酸共混材料的制备与性能[J]. 应用化学,2015,32(11):1268-1274.[15] 申雄军,陈晓峰,李贤,等. 高分子质量聚(L-丙交酯-co-己内酯)无规共聚物的制备及性能[J]. 高分子材料科学与工程,2015,31(6):1-12.[16] 张涵,孙志强,庞烜,等. 聚乳酸/聚己内酯/聚(ε-己内酯-L-丙交酯)共聚物三元共混体系的结构与性能[J]. 应用化学,2016,33(9):1026-1032.

备注/Memo

备注/Memo:
北京市大学生科研训练项目(2019 J 00016)。
更新日期/Last Update: 2022-09-15