| 11. |
Sektion I, Physik makromolekularer Stoffe: Untersuchung der molekularen Relaxation in Polymeren mittels des dielektrischen Verfabrens |
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Die Makromolekulare Chemie,
Volume 35,
Issue 1,
1960,
Page 86-91
G. P. Michailow,
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ISSN:0025-116X
DOI:10.1002/macp.1960.020350121
出版商:Hüthig&Wepf Verlag
年代:1960
数据来源: WILEY
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| 12. |
Sektion I, Physik makromolekularer Stoffe: A study of internal friction in copolymers of tetrafluoroethylene and hexafluoropropylene |
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Die Makromolekulare Chemie,
Volume 35,
Issue 1,
1960,
Page 92-93
N. G. McCrum,
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ISSN:0025-116X
DOI:10.1002/macp.1960.020350122
出版商:Hüthig&Wepf Verlag
年代:1960
数据来源: WILEY
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| 13. |
Progress in the stereospecific polymerization |
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Die Makromolekulare Chemie,
Volume 35,
Issue 1,
1960,
Page 94-131
Giulio Nata,
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摘要:
AbstractResults of new research work in the field of polymers with an ordered steric structure, obtained by stereospecific polymerization, are reported. Some of the results concern the relationship between steric structure and crystallinity; from these it results that a regular steric structure is a necessary, but not a sufficient condition for the crystallizability of the polymers.In the isotactic polymers of CH2=CHR type monomers, the shape and size of the R group not only determine the different conformation of isotactic helices (with a number of monomeric units per pitch varying form 3 to 4) but in some particular cases are responsible for the lack of crystallinity.It is possible, through chemical processes which modify the shape and size of the R substituent, to obtain crystalline polymers from isotactic, amorphous, not crystallizable polymers.The crystalline structure of syndiotactic polypropylene is described for the first time and is compared with the structure of other syndiotactic polymers.Furthermore the structure of crystalline polymers of “di‐isotactic type”, obtained polymerizing RCH=CHR1type monomers is discussed; and a nomenclature for the different possible stereoisomers is suggested.Cases of polymorphism, isomorphism and di‐isomorphism in the macromolecular field are examined and a new type of isomorphism among different monomeric units is discussd. Crystalline copolymers of isomorphous monomeric unit is discussed. Crystalline copolymers of isomorphous monomeric units have a melting point which is intermediate between the ones of the corresponding pure homopolymers.The effects which influence the steric purity of polymers having an ordered structure are discussd and the influence of steric purity of the physical properties and mainly on the mechanical properties of the polymers (especially for the case of polybutadiene obtained at the Polytechnic of Milan with a percentage of cis 1,4 units higher than 99%) is poin
ISSN:0025-116X
DOI:10.1002/macp.1960.020350105
出版商:Hüthig&Wepf Verlag
年代:1960
数据来源: WILEY
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| 14. |
Sektion II, Makromolekulare Stoffe in Lösung: Excluded volume effect and limiting viscosity number |
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Die Makromolekulare Chemie,
Volume 35,
Issue 1,
1960,
Page 99-100
M. Kurata,
H. Yamakawa,
H. Utiyama,
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ISSN:0025-116X
DOI:10.1002/macp.1960.020350124
出版商:Hüthig&Wepf Verlag
年代:1960
数据来源: WILEY
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| 15. |
Sektion II, Makromolekulare Stoffe in Lösung: Determination of molecular dimensions from rheological data |
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Die Makromolekulare Chemie,
Volume 35,
Issue 1,
1960,
Page 101-104
A. Peterlin,
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ISSN:0025-116X
DOI:10.1002/macp.1960.020350125
出版商:Hüthig&Wepf Verlag
年代:1960
数据来源: WILEY
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| 16. |
Sektion II, Makromolekulare Stoffe in Lösung: Problems of the statistical thermodynamics of dilute polymer solutions |
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Die Makromolekulare Chemie,
Volume 35,
Issue 1,
1960,
Page 105-105
W. H. Stockmayer,
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ISSN:0025-116X
DOI:10.1002/macp.1960.020350126
出版商:Hüthig&Wepf Verlag
年代:1960
数据来源: WILEY
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| 17. |
Sektion II, Makromolekulare Stoffe in Lösung: Physico‐chemical measurements of extremely dilute macromolecular solutions |
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Die Makromolekulare Chemie,
Volume 35,
Issue 1,
1960,
Page 106-108
S. Claesson,
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ISSN:0025-116X
DOI:10.1002/macp.1960.020350127
出版商:Hüthig&Wepf Verlag
年代:1960
数据来源: WILEY
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| 18. |
Sektion II, Makromolekulare Stoffe in Lösung: Membranen für osmotische Messungen |
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Die Makromolekulare Chemie,
Volume 35,
Issue 1,
1960,
Page 109-112
F. Patat,
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ISSN:0025-116X
DOI:10.1002/macp.1960.020350128
出版商:Hüthig&Wepf Verlag
年代:1960
数据来源: WILEY
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| 19. |
Sektion III, Elementarvorgänge und Kinetik der Polyreaktionen: Progress in the stereospecific polymerisation |
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Die Makromolekulare Chemie,
Volume 35,
Issue 1,
1960,
Page 113-115
G. Natta,
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ISSN:0025-116X
DOI:10.1002/macp.1960.020350129
出版商:Hüthig&Wepf Verlag
年代:1960
数据来源: WILEY
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| 20. |
Sektion III, Elementarvorgänge und Kinetik der Polyreaktionen: Some aspects of anionic polymerization |
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Die Makromolekulare Chemie,
Volume 35,
Issue 1,
1960,
Page 116-117
M. Szwarc,
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ISSN:0025-116X
DOI:10.1002/macp.1960.020350130
出版商:Hüthig&Wepf Verlag
年代:1960
数据来源: WILEY
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