化工学报 ›› 2021, Vol. 72 ›› Issue (1): 440-451.DOI: 10.11949/0438-1157.20200944
收稿日期:
2020-07-14
修回日期:
2020-09-01
出版日期:
2021-01-05
发布日期:
2021-01-05
通讯作者:
任伟民
作者简介:
高宏娟(1996—),女,硕士研究生,基金资助:
Received:
2020-07-14
Revised:
2020-09-01
Online:
2021-01-05
Published:
2021-01-05
Contact:
REN Weimin
摘要:
脂肪族聚酯作为一种高性能、多用途的生物可降解材料,被认为是具有吸引力的石油基聚合物替代品之一。现有的脂肪族聚酯存在的结构单一、亲水性差以及脆性较强等缺点,限制了其在医药卫生等领域的应用。因此,高效地实现聚酯的改性具有重要的理论研究意义和实际应用价值。其中,将醚类官能团与酯链段相结合得到聚醚-聚酯共聚物是提高聚酯性能的一类行之有效的改性方法。本文综述了内酯和环氧烷烃共聚合成聚酯-聚醚共聚物的研究进展。以共聚物的主链序列分类,分别介绍了嵌段、无规以及交替共聚物的合成方法以及相应聚合物的性质和性能。
中图分类号:
高宏娟,任伟民. 内酯和环氧烷烃共聚合成聚酯-聚醚共聚物的研究进展[J]. 化工学报, 2021, 72(1): 440-451.
GAO Hongjuan,REN Weimin. Review on synthesis of polyether-co-polyester from copolymerization of epoxides and lactones[J]. CIESC Journal, 2021, 72(1): 440-451.
图3中催化剂 | 单体 | 投料摩尔比 (内酯/环氧烷烃) | 时间/h | 温度/℃ | 转化率①/% | 分子量② | 分子量分布② | 文献 | |
---|---|---|---|---|---|---|---|---|---|
内酯 | 环氧化物 | ||||||||
1 | LA/EO | 0.5 | 22 | 60 | — | — | 26100 | 6.2 | [ |
2 | LA/EO | 0.5 | 22 | 60 | — | — | 17600 | 3.2 | [ |
3 | LA/CHO | 1.0 | — | — | 45 | 75 | 7600 | 1.29 | [ |
4 | LA/CHO | 1.0 | 3 | 24 | 98 | 69 | 37500 | 1.5 | [ |
5 | CL/EO | 1.8 | — | 50 | 50 | — | 10400 | 1.08 | [ |
6 | CL/LA/EO | — | — | — | — | 70 | 3500 | 1.12 | [ |
7/8 | LA/GPE | 0.5 | 0.75 | 25 | — | 98 | 4600 | 1.13 | [ |
表1 不同催化剂催化内酯和环氧烷烃嵌段共聚的结果
Table 1 Block copolymerization results of lactones with epoxides catalyzed by various complexes
图3中催化剂 | 单体 | 投料摩尔比 (内酯/环氧烷烃) | 时间/h | 温度/℃ | 转化率①/% | 分子量② | 分子量分布② | 文献 | |
---|---|---|---|---|---|---|---|---|---|
内酯 | 环氧化物 | ||||||||
1 | LA/EO | 0.5 | 22 | 60 | — | — | 26100 | 6.2 | [ |
2 | LA/EO | 0.5 | 22 | 60 | — | — | 17600 | 3.2 | [ |
3 | LA/CHO | 1.0 | — | — | 45 | 75 | 7600 | 1.29 | [ |
4 | LA/CHO | 1.0 | 3 | 24 | 98 | 69 | 37500 | 1.5 | [ |
5 | CL/EO | 1.8 | — | 50 | 50 | — | 10400 | 1.08 | [ |
6 | CL/LA/EO | — | — | — | — | 70 | 3500 | 1.12 | [ |
7/8 | LA/GPE | 0.5 | 0.75 | 25 | — | 98 | 4600 | 1.13 | [ |
图6、图8~图10、图12~图13中催化剂 | 单体 | 投料摩尔比 (内酯/环氧烷烃) | 时间/ h | 温度/ ℃ | 转化率①/% | 含量②/% | 分子量③ | 分子量 分布 ③ | Tg④/℃ | 文献 | |
---|---|---|---|---|---|---|---|---|---|---|---|
内酯 | 环氧烷烃 | ||||||||||
9 | LA/EO | 0.15 | 2 | 25 | — | 3.6 | — | 11100 | 1.14 | — | [ |
10 | LA/EO | 1.0 | 5 | 90 | — | — | — | 20000 | 1.5 | 11 | [ |
11 | CL/BGE | 2.33 | — | 80 | — | — | 28 | 18000 | 1.4 | –54 | [ |
12 | LA/BO | 1.0 | 24 | 45 | — | 0.25 | — | 29000 | 11.2 | 26 | [ |
12 | LA/PO | 2.0 | 24 | 45 | — | 0.34 | — | 80000 | 6.5 | 18 | [ |
12 | CL/PO | 2.0 | 24 | 45 | — | 0.51 | — | 45000 | 8.3 | — | [ |
12 | LA/ECH | 2.0 | 24 | 45 | — | 0.22 | — | 16840000 | 1.5 | –33 | [ |
13/14 | VL/PO | 1.0 | 6 | 23 | 25 | — | — | 11100 | 1.2 | — | [ |
15 | CL/PO | 1.0 | 4 | 50 | 33 | — | — | 14300 | 1.36 | — | [ |
表2 不同催化剂催化内酯和环氧烷烃无规共聚的结果
Table 2 Random copolymerization results of lactones with epoxides catalyzed by various complexes
图6、图8~图10、图12~图13中催化剂 | 单体 | 投料摩尔比 (内酯/环氧烷烃) | 时间/ h | 温度/ ℃ | 转化率①/% | 含量②/% | 分子量③ | 分子量 分布 ③ | Tg④/℃ | 文献 | |
---|---|---|---|---|---|---|---|---|---|---|---|
内酯 | 环氧烷烃 | ||||||||||
9 | LA/EO | 0.15 | 2 | 25 | — | 3.6 | — | 11100 | 1.14 | — | [ |
10 | LA/EO | 1.0 | 5 | 90 | — | — | — | 20000 | 1.5 | 11 | [ |
11 | CL/BGE | 2.33 | — | 80 | — | — | 28 | 18000 | 1.4 | –54 | [ |
12 | LA/BO | 1.0 | 24 | 45 | — | 0.25 | — | 29000 | 11.2 | 26 | [ |
12 | LA/PO | 2.0 | 24 | 45 | — | 0.34 | — | 80000 | 6.5 | 18 | [ |
12 | CL/PO | 2.0 | 24 | 45 | — | 0.51 | — | 45000 | 8.3 | — | [ |
12 | LA/ECH | 2.0 | 24 | 45 | — | 0.22 | — | 16840000 | 1.5 | –33 | [ |
13/14 | VL/PO | 1.0 | 6 | 23 | 25 | — | — | 11100 | 1.2 | — | [ |
15 | CL/PO | 1.0 | 4 | 50 | 33 | — | — | 14300 | 1.36 | — | [ |
图3、图9、图15~图18中催化剂 | 单体 | 投料摩尔比 内酯/环氧烷烃 | 时间/ h | 温度/ ℃ | 转化率①/ % | 分子量② | 分子量分布② | 文献 |
---|---|---|---|---|---|---|---|---|
16 | A③/GPE | 1.0 | 74 | 120 | 91 | 6600 | 1.6 | [ |
17 | DHNP/GPE | 1.0 | 3 | 120 | 93 | 2400 | 1.9 | [ |
18 | DHCM/PO | 0.5 | 6 | — | 88 | 15000 | 1.3 | [ |
18 | DHCM/CPO | 0.5 | 24 | — | 70 | 18000 | 1.5 | [ |
18 | DHCM/CHO | 0.5 | 6 | — | 58 | 7000 | 1.4 | [ |
11 | DHCM/EO | 0.2 | 72 | 50 | 25 | 2500 | 1.29 | [ |
6 | DHCM/EO | 0.8 | 22 | 60 | >99 | 2100 | 1.07 | [ |
19 | DHCM/EO | 0.5 | 72 | 60 | >99 | 7500 | 1.09 | [ |
表3 不同催化剂催化内酯和环氧烷烃嵌段共聚的结果
Table 3 Alternating copolymerization results of lactones with epoxides catalyzed by various complexes
图3、图9、图15~图18中催化剂 | 单体 | 投料摩尔比 内酯/环氧烷烃 | 时间/ h | 温度/ ℃ | 转化率①/ % | 分子量② | 分子量分布② | 文献 |
---|---|---|---|---|---|---|---|---|
16 | A③/GPE | 1.0 | 74 | 120 | 91 | 6600 | 1.6 | [ |
17 | DHNP/GPE | 1.0 | 3 | 120 | 93 | 2400 | 1.9 | [ |
18 | DHCM/PO | 0.5 | 6 | — | 88 | 15000 | 1.3 | [ |
18 | DHCM/CPO | 0.5 | 24 | — | 70 | 18000 | 1.5 | [ |
18 | DHCM/CHO | 0.5 | 6 | — | 58 | 7000 | 1.4 | [ |
11 | DHCM/EO | 0.2 | 72 | 50 | 25 | 2500 | 1.29 | [ |
6 | DHCM/EO | 0.8 | 22 | 60 | >99 | 2100 | 1.07 | [ |
19 | DHCM/EO | 0.5 | 72 | 60 | >99 | 7500 | 1.09 | [ |
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