Journal article

Control of crystalline modifications of poly(p-xylylene) by copolymerization


Authors list: Smarsly, B; Brink-Spalink, F; Schäfer, O; Schmidt, C; Greiner, A; Ruland, W; Wendorff, JH

Publication year: 1999

Pages: 714-718

Journal: Macromolecular Chemistry and Physics

Volume number: 200

Issue number: 4

ISSN: 1022-1352

Publisher: Wiley


Abstract: 
Poly(p-xylylene) (PPX), phenylethyl-substituted PPX (PEPPX) and copolymers of both were synthesized by base-induced dehydrohalogenation of corresponding 4-chloromethyltoluenes. Analysis of the crystal structure of PEPPX by X-ray diffractometry reveals close resemblance of its unit cell with the unit cell of PPX in its alpha-modification. The crystalline morphology of as-polymerized PPX can be described as a mixed modification consisting of alpha- and beta-crystals. However, copolymers of PPX and PEPPX show predominantly the alpha-crystals, even at very low ratio of PEPPX moieties in the copolymer. Conversion of the alpha-modification to the beta-modification cannot be accomplished by annealing of copolymers above 200 degrees C, which is in contrast to PPX homopolymers.



Citation Styles

Harvard Citation style: Smarsly, B., Brink-Spalink, F., Schäfer, O., Schmidt, C., Greiner, A., Ruland, W., et al. (1999) Control of crystalline modifications of poly(p-xylylene) by copolymerization, Macromolecular Chemistry and Physics, 200(4), pp. 714-718. https://doi.org/10.1002/(SICI)1521-3935(19990401)200:4<714::AID-MACP714>3.0.CO;2-6

APA Citation style: Smarsly, B., Brink-Spalink, F., Schäfer, O., Schmidt, C., Greiner, A., Ruland, W., & Wendorff, J. (1999). Control of crystalline modifications of poly(p-xylylene) by copolymerization. Macromolecular Chemistry and Physics. 200(4), 714-718. https://doi.org/10.1002/(SICI)1521-3935(19990401)200:4<714::AID-MACP714>3.0.CO;2-6

Last updated on 2025-21-05 at 15:13