Gas-Phase Assisted Surface Polymerization Behavior of β-Propiolactone on Inorganic and Organic Substrates and Consequent Composite Production
✍ Scribed by Haruo Nishida; Mitsuhiro Yamashita; Yoshito Andou; Jae-Mun Jeong; Takeshi Endo
- Book ID
- 102491628
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 308 KB
- Volume
- 290
- Category
- Article
- ISSN
- 1438-7492
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✦ Synopsis
Abstract
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.
magnified imageAccumulation process of poly(β‐propiolactone) on CaO as substrate‐supported initiator during GASP.