[1]黄文艳,宋肄业,柴晨琼,等.膦腈碱催化己内酯开环聚合制备线型/支化聚己内酯[J].常州大学学报(自然科学版),2020,32(01):36-43.[doi:10.3969/j.issn.2095-0411.2020.01.006]
 HUANG Wenyan,SONG Yiye,CHAI Chenqiong,et al.Preparation of Linear/Branched Polycaprolactone by Phosphazene- Catalyzed Ring-Opening Polymerization of Caprolactone[J].Journal of Changzhou University(Natural Science Edition),2020,32(01):36-43.[doi:10.3969/j.issn.2095-0411.2020.01.006]
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膦腈碱催化己内酯开环聚合制备线型/支化聚己内酯()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第32卷
期数:
2020年01期
页码:
36-43
栏目:
材料科学与工程
出版日期:
2020-01-28

文章信息/Info

Title:
Preparation of Linear/Branched Polycaprolactone by Phosphazene- Catalyzed Ring-Opening Polymerization of Caprolactone
文章编号:
2095-0411(2020)01-0036-08
作者:
黄文艳1宋肄业2柴晨琼1韩 彪1蒋其民1薛小强1杨宏军1蒋必彪12
(1.常州大学 材料科学与工程学院,江苏 常州 213164; 2.常州大学 怀德学院,江苏 靖江 214500)
Author(s):
HUANG Wenyan1 SONG Yiye2 CHAI Chenqiong1 HAN Biao1 JIANG Qimin1 XUE Xiaoqiang1 YANG Hongjun1 JIANG Bibiao12
(1. School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China; 2. Huaide College, Changzhou University, Jingjiang 214500, China)
关键词:
聚己内酯 膦腈碱 开环聚合
Keywords:
poly(δ-caprolactone) phosphazene base ring opening polymerization
分类号:
TQ 316.334
DOI:
10.3969/j.issn.2095-0411.2020.01.006
文献标志码:
A
摘要:
以膦腈碱t-BuP4为催化剂分别催化乙酸乙酯(EAc)和甲基丙烯酸乙酰氧基乙酯(AcEMA)引发己内酯(CL)的开环聚合反应,制备了线型和支化聚己内酯。利用核磁共振氢谱(1H NMR)、三检测体积排阻色谱仪(TD-SEC)和差示扫描量热仪(DSC)对共聚物进行了表征。结果表明,t-BuP4催化EAc引发CL的开环聚合反应时,随n(CL):n(EAc)的增加,聚合物的分子质量增加。t-BuP4催化AcEMA引发CL的开环聚合反应可成功制备支化PCL。当n(AcEMA):n(t-BuP4)为10:2时,CL的转化率接近100%。所得聚合物的Mark-Houwink参数α值为0.36,结晶度仅有39.68%。
Abstract:
Organic phosphazene superbase t-BuP4 was employed to catalyze ethyl acetate(EAc)and acetoxyethyl methacrylate(AcEMA)to initiate the ring opening polymerization of δ-caprolactone(CL). The structures of resulting polymers were characterized in detail by nuclear magnetic resonance spectroscopy(1H NMR), triple detection size exclusion chromatography(TD-SEC), and differential scanning calorimetry(DSC). The results showed that t-BuP4 could catalyze EAc to initiate the ring opening polymerization of CL resulting a linear poly(δ-caprolactone)(l-PCL). The molecular weight of the l-PCL increased with the increasing of n(CL):n(EAc)ratios. By using AcEMA as an initiator, branched poly(δ-caprolactone)(b-PCL)were obtained. When the molar ratio of n(AcEMA):n(t-BuP4)was 10:2, the conversion of CL was close to 100%. The mark-houwink constant(α)and the degree of crystallinity of the corresponding b-PCL was 0.36 and 39.68%, respectively.

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备注/Memo

备注/Memo:
收稿日期:2019-06-30。
基金项目:国家自然科学青年基金资助项目(21304010); 江苏省自然科学优秀青年基金资助项目(BK20170056); 江苏高校优势学科建设工程资助项目(PAPD)。
作者简介:黄文艳(1975—),女,江苏常熟人,博士,副教授。通信联系人:杨宏军(1983—),E-mail:hjyang0519@cczu.edu.cn
更新日期/Last Update: 2020-01-13