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聚（甲基丙烯酸 2-（2-甲氧基乙氧基）乙酯）在网络形成过程中高温分子弛豫的演变

Evolution of high-temperature molecular relaxations in poly(2-(2-methoxyethoxy)ethyl methacrylate) upon network formation.

作者信息

Kozanecki Marcin, Pastorczak Marcin, Okrasa Lidia, Ulanski Jacek, Yoon Jeong Ae, Kowalewski Tomasz, Matyjaszewski Krzysztof, Koynov Kaloian

机构信息

Department of Molecular Physics, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland.

Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213 USA.

出版信息

Colloid Polym Sci. 2015;293(5):1357-1367. doi: 10.1007/s00396-015-3517-8. Epub 2015 Jan 30.

DOI:10.1007/s00396-015-3517-8
PMID:26316672
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4544547/
Abstract

Copolymers of 2-(2-methoxyethoxy)ethyl methacrylate (poly(MEOMA)) are regarded as bioinert replacements of poly(-isopropylacrylamide) in some biomedical applications. Networks of poly(MEOMA) of various architecture form thermo-responsive hydrogels. Here, we present dielectric and mechanical spectroscopy studies on segmental motions and network relaxation processes in linear poly(MEOMA) and its networks - bare network and the network grafted with short poly(MEOMA) chains. We show that the α process assigned to the segmental motions of poly(MEOMA) is independent on the polymer topology and the glass transition temperature, , associated with this process equals 235-236 K for all investigated systems. The α' relaxation observed above by dynamical mechanical analysis is assigned to the sub-Rouse process. It strongly depends on the polymer network architecture and slows down by four orders of magnitude upon network formation.

摘要

甲基丙烯酸2-(2-甲氧基乙氧基)乙酯共聚物（聚(MEOMA)）在一些生物医学应用中被视为聚（N-异丙基丙烯酰胺）的生物惰性替代物。各种结构的聚(MEOMA)网络形成热响应水凝胶。在此，我们展示了对线性聚(MEOMA)及其网络（裸网络和接枝有短聚(MEOMA)链的网络）中链段运动和网络松弛过程的介电和力学光谱研究。我们表明，归属于聚(MEOMA)链段运动的α过程与聚合物拓扑结构无关，并且与该过程相关的玻璃化转变温度(T_g)对于所有研究体系均等于235 - 236 K。通过动态力学分析在(T_g)以上观察到的α'松弛归属于亚劳斯过程。它强烈依赖于聚合物网络结构，并且在网络形成时减慢四个数量级。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eee5/4544547/f8db6f76b30f/396_2015_3517_Fig7_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eee5/4544547/a69b36db5aaf/396_2015_3517_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eee5/4544547/f8db6f76b30f/396_2015_3517_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eee5/4544547/e16a83d9ba05/396_2015_3517_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eee5/4544547/ad9eb755be48/396_2015_3517_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eee5/4544547/eeb6ca960e97/396_2015_3517_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eee5/4544547/a4bb1099a42b/396_2015_3517_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eee5/4544547/f29fbf8ca28d/396_2015_3517_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eee5/4544547/a69b36db5aaf/396_2015_3517_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eee5/4544547/f8db6f76b30f/396_2015_3517_Fig7_HTML.jpg

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本文引用的文献

1
Soft Elastomers via Introduction of Poly(butyl acrylate) "Diluent" to Poly(hydroxyethyl acrylate)-Based Gel Networks.通过向基于聚（丙烯酸羟乙酯）的凝胶网络中引入聚（丙烯酸丁酯）“稀释剂”制备软质弹性体
ACS Macro Lett. 2013 Jan 15;2(1):23-26. doi: 10.1021/mz300614m. Epub 2012 Dec 18.
2
ATRP under Biologically Relevant Conditions: Grafting from a Protein.生物相关条件下的原子转移自由基聚合：从蛋白质上接枝
ACS Macro Lett. 2012 Jan 17;1(1):6-10. doi: 10.1021/mz200020c. Epub 2011 Nov 9.
3
Thermoresponsive hydrogel scaffolds with tailored hydrophilic pores.
具有定制亲水性孔的温敏水凝胶支架。
Chem Asian J. 2011 Jan 3;6(1):128-36. doi: 10.1002/asia.201000514.
4
Robust MeO2MA/vinyl-4,6-diamino-1,3,5-triazine copolymer hydrogels-mediated reverse gene transfection and thermo-induced cell detachment.Robust MeO2MA/乙烯基-4,6-二氨基-1,3,5-三嗪共聚物水凝胶介导的反向基因转染和热诱导细胞脱落。
Biomaterials. 2011 Mar;32(7):1943-9. doi: 10.1016/j.biomaterials.2010.11.019. Epub 2010 Dec 4.
5
Photo-cross-linkable thermoresponsive star polymers designed for control of cell-surface interactions.用于控制细胞表面相互作用的光交联热敏星型聚合物的设计。
Biomacromolecules. 2010 Oct 11;11(10):2647-52. doi: 10.1021/bm100630f.
6
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J Am Chem Soc. 2006 Oct 11;128(40):13046-7. doi: 10.1021/ja065324n.
7
Atom transfer radical polymerization.原子转移自由基聚合
Chem Rev. 2001 Sep;101(9):2921-90. doi: 10.1021/cr940534g.