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231225s2022 xx |||||o 00| ||eng c |
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7 |
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|a 10.1021/acs.langmuir.1c03216
|2 doi
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|a pubmed24n1122.xml
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|a (DE-627)NLM336624379
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|a (NLM)35129976
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Molero, Glendimar
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Fracture Behavior of Polyrotaxane-Toughened Poly(Methyl Methacrylate)
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 08.03.2022
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|a Date Revised 08.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The fracture behavior of polyrotaxane (PR)-modified poly(methyl methacrylate) (PMMA) was investigated. PR is a supramolecule with rings threaded onto a linear backbone chain, which is capped by bulky end groups to prevent the rings from de-threading. The ring structure is α-cyclodextrin (CD), and it can be functionalized to enhance its affinity with the hosting polymer matrix. Adding only 1 wt % of PR containing methacrylate functional groups (mPR) at the terminal of some of the polycaprolactone-grafted chains on CD promotes massive crazing, resulting in a significant improvement in fracture toughness while maintaining the modulus and transparency of the PMMA matrix. Dynamic mechanical analysis and atomic force microscopy studies reveal that mPR strongly interact with PMMA, leading to higher molecular mobility and enhanced molecular cooperativity during deformation. This molecular cooperativity may be responsible for the formation of massive crazing in a PMMA matrix, which leads to greatly improved fracture toughness
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Polymers
|2 NLM
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|a Rotaxanes
|2 NLM
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|a Polymethyl Methacrylate
|2 NLM
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|a 9011-14-7
|2 NLM
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1 |
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|a Liu, Cong
|e verfasserin
|4 aut
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|a Zhu, Zewen
|e verfasserin
|4 aut
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|a Chen, Qihui
|e verfasserin
|4 aut
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|a Peterson, Suzanne R
|e verfasserin
|4 aut
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|a Kolluru, Pavan V
|e verfasserin
|4 aut
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1 |
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|a Sue, Hung-Jue
|e verfasserin
|4 aut
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1 |
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|a Uenuma, Shuntaro
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mayumi, Koichi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ito, Kohzo
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1999
|g 38(2022), 7 vom: 22. Feb., Seite 2335-2345
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:38
|g year:2022
|g number:7
|g day:22
|g month:02
|g pages:2335-2345
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|u http://dx.doi.org/10.1021/acs.langmuir.1c03216
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