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Low‐filled toughened composites of poly(hexano‐6‐lactam)‐ block ‐polybutadiene‐ block ‐poly(hexano‐6‐lactam)/wollastonite by polymerization casting
Author(s) -
Stehlíček J.,
Puffr R.,
Lednický F.,
Nováková V.,
Roda J.
Publication year - 1998
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/(sici)1097-4628(19980912)69:11<2139::aid-app5>3.0.co;2-h
Subject(s) - lactam , composite material , materials science , polybutadiene , wollastonite , polymerization , polymer chemistry , chemistry , polymer , stereochemistry , copolymer , organic chemistry , raw material
Composites consisting of 10–15 wt % wollastonite as an acicular filler and poly(hexano‐6‐lactam)‐ block ‐polybutadiene‐ block ‐poly(hexano‐6‐lactam) matrix (5–15 wt % polybutadiene blocks) were prepared by anionic polymerization of hexano‐6‐lactam. Hydroxyterminated polybutadiene in situ functionalized with toluene‐2,4‐diyl diisocyanate (TDI) was used as an initiator and sodium salt of hexano‐6‐lactam as a catalyst. To achieve a good dispergation and high adhesion to the matrix, the filler was modified with (3‐aminopropyl)triethoxysilane and then functionalized either separately with N,N ′‐benzene‐1,3‐dicarbonylbis(hexano‐6‐lactam) or N ‐benzoyl‐hexano‐6‐lactam or in situ functionalized with TDI. The increase in Young's modulus and decrease in elongation were achieved along with a moderate decrease in impact resistance. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 69: 2139–2146, 1998