Microphase and macrophase transitions in binary blends of diblock copolymers

Macromolecules

Volumn 32, Issue 6, 1999, Pages 1803-1808

  Jeon, Hong G ^a,c   Hudson, Steven D ^a   Ishida, Hatsuo ^a   Smith, Steven D ^b  

^a CASE WESTERN RESERVE UNIVERSITY   (United States)

^b PROCTER AND GAMBLE COMPANY   (United States)

^c Curtiss Wright Controls Inc   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BLOCK COPOLYMERS; ELECTRON MICROSCOPY; INTERFACES (MATERIALS); MOLECULAR DYNAMICS; MOLECULAR WEIGHT; MORPHOLOGY; OPTICAL MICROSCOPY; PHASE SEPARATION; PHASE TRANSITIONS; POLYISOPRENES; POLYSTYRENES; RHEOLOGY;

MACROPHASE TRANSITION; MICROPHASE TRANSITION; POLYETHYLPROPYLENES;

POLYMER BLENDS;

EID: 0032687048     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma9816665     Document Type: Article

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25. Note Added in Proof. A similar observation concerning the structure of a lamellar phase comprising SI and SEP copolymers has been reported recently (Kimishima, K.; Jinnai, H.; Hashomoto, T., submitted to Macromolecules). In that report concerning 50/50 blends of SEP and SI copolymers, macrophase separation was suppressed by setting the fraction of polystyrene of both copolymers to be the same. Moreover, the interaction between the two copolymers was reduced by partial hydrogenation of the polyisoprene segment. Preferential segregation of isoprene segments to the interface between EP and S rich microdomains was observed.