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Gas‐Phase Assisted Surface Polymerization Behavior of β ‐Propiolactone on Inorganic and Organic Substrates and Consequent Composite Production
Author(s) -
Nishida Haruo,
Yamashita Mitsuhiro,
Andou Yoshito,
Jeong JaeMun,
Endo Takeshi
Publication year - 2005
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200500142
Subject(s) - substrate (aquarium) , polymerization , materials science , phase (matter) , composite number , chemical engineering , polymer , coating , polymer chemistry , melting point , gas phase , monomer , composite material , chemistry , organic chemistry , oceanography , engineering , geology
Summary: Gas‐phase assisted surface polymerization (GASP) of β ‐propiolactone ( β PL) was investigated using substrate‐supported anionic initiators to produce a strongly bonded poly( β ‐propiolactone) (PPL)/CaO composite and a novel PPL crystalline deposit with a high melting point value on Al plates. The polymerization of β PL smoothly proceeded in the gas phase to give high‐molecular‐weight PPLs having high PDI values. An almost linear relationship between $\overline M _{\rm n}$ value and incremental increase in the deposit suggested the living nature of the GASP of β PL. The obtained polymer‐coated substrates, especially PPL/CaO composite, showed strong interaction at the organic/inorganic interface. Moreover, the thermal and structural analyses of deposits revealed that some specific conformations were formed on CaO powder and Al plate surfaces to give highly crystallized deposits. These results demonstrate that the GASP is an effective method for coating any substrate that has a complex shape and a surface morphology.Accumulation process of poly( β ‐propiolactone) on CaO as substrate‐supported initiator during GASP.