View in EDS

Supramolecular aggregates of linear and star-shaped polylactides with different number of hydroxyl or carboxyl end-groups.

Saved in:
Bibliographic Details
Title: Supramolecular aggregates of linear and star-shaped polylactides with different number of hydroxyl or carboxyl end-groups.
Authors: Michalski, Adam1, Brzeziński, Marek1, Kubisa, Przemysław1, Biela, Tadeusz1 tadek@cbmm.lodz.pl
Source: Reactive & Functional Polymers. Jul2018, Vol. 128, p67-73. 7p.
Subjects: Polylactic acid, Supramolecular polymers, Hydroxyl group, Carboxyl group, Chemical synthesis
Abstract: In this paper a set of linear and star -shaped polylactides (PLA's) containing a different number of -OH end-groups (1, 2, 4, 6 and 8) were synthesized. To compare the extent of interactions between different end-groups, the OH end-groups were transformed to COOH end-groups. To attain the proper conditions of this transformation, the conditions were optimized for the chosen model and then used for all synthesized polymers. The structure of synthesized polymers were confirmed by SEC-MALS, NMR and ATR FT-IR analyses. It was shown that PLA's architecture and number of OH and COOH groups in a single macromolecule have an influence on a viscosity of their solution due to their self-organization. For star -shaped PLA's containing higher than four number of COOH end-groups, it has been observed for the first time that the effect of intramolecular interactions exceeds intermolecular interactions what strongly affect their properties in diluted and concentrated solutions. [ABSTRACT FROM AUTHOR]
Copyright of Reactive & Functional Polymers is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 129808004
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Supramolecular aggregates of linear and star-shaped polylactides with different number of hydroxyl or carboxyl end-groups.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Michalski%2C+Adam%22">Michalski, Adam</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Brzeziński%2C+Marek%22">Brzeziński, Marek</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kubisa%2C+Przemysław%22">Kubisa, Przemysław</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Biela%2C+Tadeusz%22">Biela, Tadeusz</searchLink><relatesTo>1</relatesTo><i> tadek@cbmm.lodz.pl</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Reactive+%26+Functional+Polymers%22">Reactive & Functional Polymers</searchLink>. Jul2018, Vol. 128, p67-73. 7p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Polylactic+acid%22">Polylactic acid</searchLink><br /><searchLink fieldCode="DE" term="%22Supramolecular+polymers%22">Supramolecular polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Hydroxyl+group%22">Hydroxyl group</searchLink><br /><searchLink fieldCode="DE" term="%22Carboxyl+group%22">Carboxyl group</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+synthesis%22">Chemical synthesis</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this paper a set of linear and star -shaped polylactides (PLA's) containing a different number of -OH end-groups (1, 2, 4, 6 and 8) were synthesized. To compare the extent of interactions between different end-groups, the OH end-groups were transformed to COOH end-groups. To attain the proper conditions of this transformation, the conditions were optimized for the chosen model and then used for all synthesized polymers. The structure of synthesized polymers were confirmed by SEC-MALS, NMR and ATR FT-IR analyses. It was shown that PLA's architecture and number of OH and COOH groups in a single macromolecule have an influence on a viscosity of their solution due to their self-organization. For star -shaped PLA's containing higher than four number of COOH end-groups, it has been observed for the first time that the effect of intramolecular interactions exceeds intermolecular interactions what strongly affect their properties in diluted and concentrated solutions. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Reactive & Functional Polymers is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=129808004
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.reactfunctpolym.2018.05.001
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 7
        StartPage: 67
    Subjects:
      – SubjectFull: Polylactic acid
        Type: general
      – SubjectFull: Supramolecular polymers
        Type: general
      – SubjectFull: Hydroxyl group
        Type: general
      – SubjectFull: Carboxyl group
        Type: general
      – SubjectFull: Chemical synthesis
        Type: general
    Titles:
      – TitleFull: Supramolecular aggregates of linear and star-shaped polylactides with different number of hydroxyl or carboxyl end-groups.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Michalski, Adam
      – PersonEntity:
          Name:
            NameFull: Brzeziński, Marek
      – PersonEntity:
          Name:
            NameFull: Kubisa, Przemysław
      – PersonEntity:
          Name:
            NameFull: Biela, Tadeusz
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 07
              Text: Jul2018
              Type: published
              Y: 2018
          Identifiers:
            – Type: issn-print
              Value: 13815148
          Numbering:
            – Type: volume
              Value: 128
          Titles:
            – TitleFull: Reactive & Functional Polymers
              Type: main
ResultId 1