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江南大学纺织服装学院生态纺织教育部重点实验室,无锡 214122
张广志(1988-),男,硕士研究生,研究方向为生物质材料改型,E-mail: huangdan6@163.com
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纸质出版日期:2013-03,
收稿日期:2012-08-09,
修回日期:2012-11-12,
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张广志, 黄丹, 蒋学. 乙酰化稻草/聚己内酯接枝共聚物的合成及表征[J]. 高分子通报, 2013,26(3):71-77.
Guang-zhi ZHANG, Dan HUANG, Xue JIANG. Synthesis and Characteristics of Graft Copolymer of ε-Caprolactone onto Acetylated Rice Straw[J]. Polymer Bulletin, 2013,26(3):71-77.
张广志, 黄丹, 蒋学. 乙酰化稻草/聚己内酯接枝共聚物的合成及表征[J]. 高分子通报, 2013,26(3):71-77. DOI:
Guang-zhi ZHANG, Dan HUANG, Xue JIANG. Synthesis and Characteristics of Graft Copolymer of ε-Caprolactone onto Acetylated Rice Straw[J]. Polymer Bulletin, 2013,26(3):71-77. DOI:
以稻草秸秆为原料
经粉碎后进行全植物秸秆的乙酰化改性
再用此乙酰化稻草同
ε
-己内酯(
-CL)接枝共聚合成乙酰化稻草/聚己内酯接枝共聚物(ACSW-
g
-PCL)。研究了反应时间、反应温度、及单体用量对接枝率(G%)的影响。在反应温度140℃
反应时间10h
-CL对乙酰化稻草的质量比2:1时获得的接枝率最大为39%。产物的结构和性能通过红外光谱、核磁共振、扫描电镜、X-射线衍射和热分析仪表征
结果表明乙酰化稻草秸秆已成功接枝上聚己内酯(PCL)链段
经接枝
-CL改性后的ACSW-
-PCL热稳定性有所改善
并具有了一定的热塑性。
Acetylated straw-graft-poly (
-Caprolactone) copolymer (ACSW-g-PCL) is synthesized with the grafting copolymerization of acetylated straw (ACSW) and
-Caprolactone
in which the acetylated straw is synthesized with the acylation of the ground rice straw powder. The influences of time
temperature and amount of
-Caprolactone on the grafting percentage (G%) are studied. The maximum grafting percentage (39%) was obtained at thereaction temperature 140℃
reaction time 10h and the weight ratio of caprolactone to acetylated straw 2:1. Thecomposition and structure of ACSW-
-PCL were analyzed by various methods including FTIR spectroscopy
1
H NMR
SEM analysis
XRD and thermal performance testing. The results show that the PCL has been grafted onto the ACSW
and the DSC proved that the thermo stability and thermoplastic property of ACSW-
-PCL are much better than that of the original straw.
稻草乙酰化ε-己内酯接枝改性热塑性
Rice strawAcetylationε-CaprolactoneGraft copolymerizationThermoplastic
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