Complex formations between iso and syndiotactic polymethylmethacrylate in solutions

ABSTRACT LIQUORI1,2 showed the occurrence of a possible “stereocomplex” in dissolved mixtures of iso and syndiotactic polymethylmethacrylate (PMMA) in a ratio of 1/2 i/s PMMA and, on the

basis of X-ray diffraction on the solid mixtures, suggested its possible structure1. After Liquori's first publication in 1965, we supposed that such a stereocomplex could also be shown

by viscosity, light-scattering and refractive index measurements of solutions of isomer mixtures and by infrared spectral analysis of solid mixtures. The syntheses of the iso and

syndiotactic3,4 isomers (I and S) are described in ref. 5. The molecular weights and nuclear magnetic resonance tacticities are given in Table 1. The preparation of the solutions is

described in ref. 5. Chloroform is used as solvent. Access through your institution Buy or subscribe This is a preview of subscription content, access via your institution ACCESS OPTIONS

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REFERENCES * Liquori, A. M., _et al._, _Nature_, 206, 358 (1965). Article  ADS  CAS  Google Scholar  * Liquori, A. M., _et al._, _J. Polymer Sci._, 4B, 943 (1966). Article  CAS  Google

Scholar  * Goode, W. E., _et al._, _J. Polymer Sci._, 46, 317 (1960). Article  ADS  CAS  Google Scholar  * Belgium Pat. No. 566,713 (1958). * van den Berg, W. B., thesis, Eindhoven (1967). *

Braun, D., _et al._, _Makromol. Chem._, 51, 15 (1961). Article  ADS  Google Scholar  Download references AUTHOR INFORMATION Author notes * W. B. VAN DEN BERG Present address: L. van der

Grinten NV, Venlo, The Netherlands AUTHORS AND AFFILIATIONS * Technological University, Eindhoven, The Netherlands W. B. VAN DEN BERG, B. HIJMANS, P. PIET & D. HEIKENS Authors * W. B.

VAN DEN BERG View author publications You can also search for this author inPubMed Google Scholar * B. HIJMANS View author publications You can also search for this author inPubMed Google

Scholar * P. PIET View author publications You can also search for this author inPubMed Google Scholar * D. HEIKENS View author publications You can also search for this author inPubMed 

Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE VAN DEN BERG, W., HIJMANS, B., PIET, P. _et al._ Complex Formations between Iso and

Syndiotactic Polymethylmethacrylate in Solutions. _Nature_ 217, 949 (1968). https://doi.org/10.1038/217949a0 Download citation * Received: 11 October 1967 * Revised: 05 February 1968 * Issue

Date: 09 March 1968 * DOI: https://doi.org/10.1038/217949a0 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable link Sorry, a

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