Polylactide. I. Continuous dry spinning–hot drawing preparation of fibers | Zendy

Horáček I. | Zendy; Kalíšek V. | Zendy

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Polylactide. I. Continuous dry spinning–hot drawing preparation of fibers

Author(s) -

Horáček I.,

Kalíšek V.

Publication year - 1994

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.1994.070541117

Subject(s) - cyclohexane , spinning , chloroform , materials science , monomer , dissolution , melt spinning , fiber , polymerization , composite material , polymer chemistry , volume (thermodynamics) , polymer , chemical engineering , chemistry , organic chemistry , physics , quantum mechanics , engineering

The mechanical properties and in vitro degradability of gamma‐rays sterilized and non‐sterlized PLLA fibers prepared by a continuous dry spinning–hot drawing process were studied in relation to the spinning solution composition. Chloroform/cyclohexane mixtures of different volume ratios were used for dissolution either purified or as polymerized (with a residual monomer) PLLA. The fibers obtained had average or poor mechanical properties and a porous structure with a pointed outer skin. No increase of the degradation rate was observed except for the fibers formed from pure chloroform with a residual monomer at a drawing temperature of 110°C. At chloroform/cyclohexane volume ratio of 6:4 the process resulted in nearly hollow fiber formation. © 1994 John Wiley & Sons, Inc.

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