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ABA-type block copolymers containing poly(dimethylsiloxane) and ketonic resins

✍ Scribed by Nurseli Uyanik; Nilgün Kizilcan; Ahmet Akar

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 187 KB
Volume: 67
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19980124)67:4<643::aid-app7>3.0.co;2-q

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✦ Synopsis

Block copolymer containing segments of poly(dimethylsiloxane) (PDMS) and ketonic resins were synthesized. Dihydroxy-terminated PDMS were reacted with the isophorone diisocyanate (IPDI) to obtain the diisocyanate-terminated PDMSs (urethane). These urethanes were reacted with reactive hydroxyl groups in the cyclohexanone-formaldehyde, acetophenone-formaldehyde, and in situ melamine-modified cyclohexanone-formaldehyde resins.

Formation of block copolymers was illustrated by several characterization methods, such as chemical and spectroscopic analysis and gel permeation chromatography. The solubilities of the block copolymers were determined, and their surface properties were investigated by contact angle measurements.

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