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通过用聚环氧乙烷稀释对聚己二酸丁二醇酯中从环状带状到无环树枝状组装体的结构转变进行微束X射线研究。

Microbeam X-Ray Investigation of the Structural Transition from Circularly Banded to Ringless Dendritic Assemblies in Poly(Butylene Adipate) Through Dilution with Poly(Ethylene Oxide).

作者信息

Nagarajan Selvaraj, Chang Chia-I, Lin I-Chuan, Chen Yu-Syuan, Su Chean-Cheng, Lee Li-Ting, Woo Eamor M

机构信息

Department of Chemical Engineering, National Cheng Kung University, Tainan 701-01, Taiwan.

Department of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung 811726, Taiwan.

出版信息

Polymers (Basel). 2025 Jul 26;17(15):2040. doi: 10.3390/polym17152040.

DOI:10.3390/polym17152040
PMID:40808088
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12349629/
Abstract

In this study, growth mechanisms are proposed to understand how banded dendritic crystal aggregates in poly(1,4-butylene adipate) (PBA) transform into straight dendrites upon dilution with a large quantity of poly(ethylene oxide) (PEO) (25-90 wt.%). In growth packing, crystal plates are deformed in numerous ways, such as bending, scrolling, and twisting in self-assembly, into final aggregated morphologies of periodic bands or straight dendrites. Diluting PBA with a significant amount of PEO uncovers intricate periodic banded assemblies, facilitating better structural analysis. Both circularly banded and straight dendritic PBA aggregates have similar basic lamellar patterns. In straight dendritic PBA spherulites, crystal plates can twist from edge-on to flat-on, similar to those in ring-banded spherulites. Therefore, twists-whether continuous or discontinuous-are not limited to the conventional models proposed for classical periodic-banded spherulites. Thus, it would not be universally accurate to claim that the periodic circular bands observed in polymers or small-molecule compounds are caused by continuous lamellar helix twists. Straight dendrites, which do not exhibit optical bands, may also involve alternate crystal twists or scrolls during growth. Iridescence tests are used to compare the differences in crystal assemblies of straight dendrites vs. circularly banded PBA crystals.

摘要

在本研究中，我们提出了生长机制，以了解聚己二酸丁二醇酯（PBA）中的带状树枝状晶体聚集体在大量聚环氧乙烷（PEO）（25 - 90 wt.%）稀释后如何转变为直树枝晶。在生长堆积过程中，晶体片层会以多种方式变形，例如在自组装过程中弯曲、卷曲和扭曲，形成周期性条带或直树枝晶的最终聚集形态。用大量PEO稀释PBA会揭示出复杂的周期性条带组装，便于进行更好的结构分析。圆形条带状和直树枝状PBA聚集体都具有相似的基本片层图案。在直树枝状PBA球晶中，晶体片层可以从边缘取向扭曲为平面取向，类似于环带状球晶中的情况。因此，扭曲——无论是连续的还是不连续的——并不局限于为经典周期性条带球晶提出的传统模型。因此，声称在聚合物或小分子化合物中观察到的周期性圆形条带是由连续的片层螺旋扭曲引起的，这并不普遍准确。不显示光学条带的直树枝晶在生长过程中也可能涉及交替的晶体扭曲或卷曲。使用虹彩测试来比较直树枝晶与圆形条带状PBA晶体的晶体组装差异。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/7526f3c92050/polymers-17-02040-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/76ca1b166757/polymers-17-02040-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/68129c8e75f2/polymers-17-02040-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/1ba9d589d121/polymers-17-02040-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/c5f820236610/polymers-17-02040-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/a46232f48387/polymers-17-02040-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/846e47258b6f/polymers-17-02040-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/ec96b1c7991c/polymers-17-02040-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/10d4f60b7f33/polymers-17-02040-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/49eb49b72458/polymers-17-02040-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/51874f0d57a8/polymers-17-02040-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/963e36309d15/polymers-17-02040-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/2e1d54619541/polymers-17-02040-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/e47f40895420/polymers-17-02040-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/7526f3c92050/polymers-17-02040-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/76ca1b166757/polymers-17-02040-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/68129c8e75f2/polymers-17-02040-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/1ba9d589d121/polymers-17-02040-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/c5f820236610/polymers-17-02040-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/a46232f48387/polymers-17-02040-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/846e47258b6f/polymers-17-02040-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/ec96b1c7991c/polymers-17-02040-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/10d4f60b7f33/polymers-17-02040-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/49eb49b72458/polymers-17-02040-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/51874f0d57a8/polymers-17-02040-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/963e36309d15/polymers-17-02040-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/2e1d54619541/polymers-17-02040-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/e47f40895420/polymers-17-02040-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b79e/12349629/7526f3c92050/polymers-17-02040-g013.jpg

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本文引用的文献

1
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2
Probing the Nano-Assembly Leading to Periodic Gratings in Poly(p-dioxanone).探究聚对二氧六环中形成周期性光栅的纳米组装过程。
Nanomaterials (Basel). 2023 Sep 28;13(19):2665. doi: 10.3390/nano13192665.
3
Grating Assembly Dissected in Periodic Bands of Poly (Butylene Adipate) Modulated with Poly (Ethylene Oxide).
在由聚环氧乙烷调制的聚己二酸丁二醇酯的周期性带中剖析的光栅组件。
Polymers (Basel). 2022 Nov 7;14(21):4781. doi: 10.3390/polym14214781.
4
Bowls, vases and goblets-the microcrockery of polymer and nanocomposite morphology revealed by two-photon optical tomography.双光子光学层析成像揭示聚合物和纳米复合材料形态的微陶瓷制品：碗、花瓶和高脚酒杯。
Nat Commun. 2021 Aug 20;12(1):5054. doi: 10.1038/s41467-021-25297-w.
5
Microstructural Periodic Arrays in Poly(Butylene Adipate) Featured with Photonic Crystal Aggregates.聚己二酸丁二醇酯中具有光子晶体聚集的微结构周期性排列。
Macromol Rapid Commun. 2021 Aug;42(15):e2100202. doi: 10.1002/marc.202100202. Epub 2021 Jun 13.
6
Intertwining lamellar assembly in porous spherulites composed of two ring-banded poly(ethylene adipate) and poly(butylene adipate).由两种环状聚己二酸乙二酯和聚己二酸丁二酯组成的多孔球晶中的交织层状组装体。
Soft Matter. 2015 Feb 7;11(5):908-17. doi: 10.1039/c4sm02489c.
7
Relation between the helical twist and S-shaped cross section of the lamellar crystals of polyethylene.聚乙烯层状晶体的螺旋扭曲与 S 形横截面之间的关系。
Sci Rep. 2013;3:1444. doi: 10.1038/srep01444.
8
Surface and interior views on origins of two types of banded spherulites in poly(nonamethylene terephthalate).聚对苯二甲酰壬二胺中两种类型环带球晶的表面和内部起源。
Phys Chem Chem Phys. 2011 Oct 21;13(39):17841-51. doi: 10.1039/c1cp22249j. Epub 2011 Sep 12.
9
Iridescent color of a shell of the mollusk pinctada margaritifera caused by diffraction.由衍射引起的珠母贝贝壳的虹彩颜色。
Opt Express. 1999 Mar 1;4(5):177-82. doi: 10.1364/oe.4.000177.
10
Banded spherulitic structures of poly(ethylene adipate), poly(butylene succinate) and in their blends.聚己二酸乙二酯、聚丁二酸丁二酯及其共混物的带状球晶结构。
Phys Chem Chem Phys. 2009 Mar 14;11(10):1619-27. doi: 10.1039/b817597g. Epub 2009 Jan 21.