Characterization and free radical polymerization of liquid crystalline acrylic acid/cellulose diacetate and  N ‐vinyl‐2‐pyrrolidinone/cellulose diacetate solutions | Zendy

Kozakiewicz Joseph J. | Zendy; Magniess Jane E. | Zendy

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Characterization and free radical polymerization of liquid crystalline acrylic acid/cellulose diacetate and N ‐vinyl‐2‐pyrrolidinone/cellulose diacetate solutions

Author(s) -

Kozakiewicz Joseph J.,

Magniess Jane E.

Publication year - 1987

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1987.070340319

Subject(s) - cellulose , polymerization , materials science , polymer chemistry , acrylic acid , polymer , radical polymerization , liquid crystal , phase (matter) , chemical engineering , monomer , chemistry , organic chemistry , composite material , optoelectronics , engineering

Polymerizations of liquid crystalline solutions of cellulose diacetate (CDA) in acrylic acid (AA) and N ‐vinyl‐2‐pyrrolidinone (NVP) were conducted in an attempt to prepare molecular composites (polymer blends) processing a rigid rod polymer with liquid crystalline orientation. CDA was found to form liquid crystalline solutions in both AA and NVP at concentrations avove 40 wt% CDA. Polymerization of anisotropic 50 wt% CDA‐AA and CDA‐NVP solutions occurred with considerable retention of the starting solution anisotropy and yielded homogeneous blends (1 T g ) when the rate of polymerization was fast relative to the phase separation of the free radically polymerizing AA or NVP with CDA. Slow polymerizations lead to phase separated blends (2 T g ).

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