First observation of an ordered microphase in melts of poly(oxyethylene)–poly(oxypropylene) block copolymers

文献信息

发布日期 2000-03-10
DOI 10.1039/A909182C
影响因子 3.676
作者

J. Patrick A. Fairclough, Ga-Er Yu, Shao-Min Mai, Michael Crothers, Kell Mortensen, Anthony J. Ryan, and Colin Booth


查看原文

摘要

The first observation of ordered microphase structures in poly(oxyethylene)–poly(oxypropylene) diblock copolymers melts is reported. Two diblock copolymers were synthesised by anionic polymerisation, i.e. E130P58 and E107P69 where E represents an oxyethylene unit, OCH2CH2, and P an oxypropylene unit, OCH2CH(CH3). The volume fractions of the two components were in the range 0.5–0.6. Order in the melt phase was confirmed by small angle X-ray scattering, and order-to-disorder transitions (ODT) were located at 106°C (E130P58) and 114°C (E107P69). In a related experiment, a triblock copolymer with perdeuterated P blocks, E33dP42E33, was synthesised and studied in the melt phase by small-angle neutron scattering. This allowed determination of the temperature dependence of the Flory–Huggins interaction parameter for the poly(oxyethylene)–poly(oxypropylene) system, i.e. χ=20.2/T+0.0221.

相关文献

Phenols as probes of chemical composition of graphene oxide

Thi Mai Huong Tran, Adriano Ambrosi, Martin Pumera

2016-10-26 Paper

DOI: 10.1039/C6CP05569A

Amyloid beta peptides inside a reconstituted cell-like liposomal system: aggregation, FRET, fluorescence oscillations and solvation dynamics

Somen Nandi, Rajdeep Chowdhury, Abhijit Saha, Kankan Bhattacharyya

2016-10-13 Paper

DOI: 10.1039/C6CP06143E

Inside back cover

Cover

DOI: 10.1039/C6CP90281B

Interplay between surface and surface resonance states on height selective stability of fcc Dy(111) film at nanoscale

Xiaojie Liu, Cai-Zhuang Wang, Myron Hupalo, Kai-Ming Ho, Patricia A. Thiel, Michael C. Tringides

2016-11-02 Paper

DOI: 10.1039/C6CP05639C

Strong shear-driven large scale formation of hybrid shish-kebab in carbon nanofiber reinforced polyethylene composites during the melt second flow

Xiao-Chao Xia, Wei Yang, Zheng-Ying Liu, Rui-Yan Zhang, Dan-Dan Xie, Ming-Bo Yang

2016-10-06 Paper

DOI: 10.1039/C6CP04901J

Boosting carbon quantum dots/fullerene electron transfer via surface group engineering

Alberto Privitera, Marcello Righetto, Dario Mosconi, Francesca Lorandi, Abdirisak A. Isse, Alessandro Moretto, Renato Bozio, Camilla Ferrante, Lorenzo Franco

2016-10-26 Paper

DOI: 10.1039/C6CP05981C

Theoretical characterization of the conformational features of unnatural oligonucleotides containing a six nucleotide genetic alphabet

Wenjuan Wang, Xiehuang Sheng, Shaolong Zhang, Fang Huang, Chuanzhi Sun, Jianbiao Liu, Dezhan Chen

2016-09-20 Paper

DOI: 10.1039/C6CP05594J

Structure and dynamics of water molecules confined in triglyceride oils

Carien C. M. Groot, Huib J. Bakker

2016-09-30 Paper

DOI: 10.1039/C6CP05883C

Thermal transport properties of antimonene: an ab initio study

Shudong Wang, Wenhua Wang, Guojun Zhao

2016-10-20 Paper

DOI: 10.1039/C6CP06088A

您可能还喜欢

化合物问答

什么是2-Bromo-1-(pyrimidin-2-yl)ethanone hydrobromide(CAS号:1588441-02-4)?

2-Bromo-1-(pyrimidin-2-yl)ethanone hydrobromide是一种有机化合物,分子式为C6H5Br2N2O2。它是一种溴代化合...

1588441-02-42-Bromo-1-(2-pyrimid...
化合物问答

在合成中是否有1-正-丁基-3-甲基咪唑鎓三氟甲烷磺酸盐(CAS号:174899-66-2)的替代品?

在合成中,可以考虑使用1-正-丁基-3-甲基咪唑鎓溴酸盐或1-正-丁基-3-甲基咪唑鎓氯酸盐作为替代品。这些化合物在性能上与1-正-丁基-3-甲基咪唑鎓三氟甲烷...

174899-66-21-Butyl-3-methyl-1H-...
化合物问答

2-methyl-5-thiophen-2-ylfuran-3-carboxylic acid(CAS号:651005-90-2)的市场或研究趋势如何?

目前,2-methyl-5-thiophen-2-ylfuran-3-carboxylic acid的研究主要集中在药物化学和新型材料领域。随着生物医药和有机合...

651005-90-22-Methyl-5-(thien-2-...
化合物问答

格列吡嗪杂质H(CAS号:13554-93-3)的主要用途是什么?

格列吡嗪杂质H主要作为药物中间体或副产物存在,并无特定的工业应用。在药物生产中,它可能需要被处理掉以保证最终药物的质量。

13554-93-3Ethyl (2-(4-((cycloh...
化合物问答

如何储存(9ci)-4-甲氧基-1H-苯并咪唑-2-乙腈(CAS号:317817-41-7)?

(9ci)-4-甲氧基-1H-苯并咪唑-2-乙腈应储存在阴凉、干燥、通风良好的地方,避免阳光直射。使用密封的玻璃或塑料容器储存,并确保容器的密封性良好,以防止挥...

317817-41-7(4-Methoxy-1H-benzim...
化合物问答

4,5,9,10-四氢苯芘(CAS号:781-17-9)应用于哪些行业?

4,5,9,10-四氢苯芘在医药行业用于作为某些药物的中间体,在聚合物行业用作添加剂提升材料的热稳定性,在传感器领域作为传感器的敏感材料,在半导体行业中用作掺杂...

781-17-94,5,9,10-Tetrahydrop...
化合物问答

处理叶酸-D4(CAS号:171777-72-3)时应注意哪些实验室安全事项?

处理叶酸-D4时应佩戴个人防护装备(PPE),如手套和实验服。操作应在通风橱内进行,以避免吸入蒸汽或粉尘。如果不慎泄露,应立即用大量清水冲洗,并通知安全人员。参...

171777-72-3Folic Acid-d4
化合物问答

如何处理含有6-溴-2-(三氟乙酰基)-1,2,3,4-四氢异喹啉(CAS号:252331-63-8)的废料?

含有该化合物的废料应收集到专用的容器中,并进行密封以防止挥发和泄漏。在处理前,需进行危险性评估,以确定是否需要进行化学处理。最终处置需遵循当地的危险废物管理规定...

252331-63-81-(6-bromo-3,4-dihyd...
化合物问答

4,5-二氟-2-甲氧基苯甲醛(CAS号:145742-34-3)的主要用途是什么?

4,5-二氟-2-甲氧基苯甲醛主要用作有机合成中的中间体,特别是在制药和农药领域。它可以作为合成其他有机化合物的原料。

145742-34-34,5-difluoro-2-metho...
化合物问答

5-溴-6-三氟甲基吲哚(CAS号:1198475-24-9)安全吗?

5-溴-6-三氟甲基吲哚作为一种化学试剂,具有一定的毒性,需要在通风橱中操作,并采取适当的安全措施以避免吸入、皮肤接触和眼睛刺激。应避免与皮肤和眼睛直接接触,并...

1198475-24-95-bromo-6-(trifluoro...

来源期刊

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
自引率: 10.3%
年发文量: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

推荐供应商

免责声明
本页面提供的学术期刊信息仅供参考和研究使用。我们与任何期刊出版商均无关联,也不处理投稿事宜。如有投稿相关咨询,请直接联系相关期刊出版商。
如发现页面信息有误,请发送邮件至 support@chemtradehub.com 联系我们。我们将及时核实并处理您的问题。