Abstract
We report the single-step preparation of controllably cross-linked poly(divinylbenzene) (PDVB) and poly(4-vinylpyridine-co-divinylbenzene) thin films using initiated chemical vapor deposition (iCVD). Fourier transform infrared spectroscopy-based methods for quantifying film composition and degree of cross-linking are elucidated; the validity of these methods is assessed using X-ray photoelectron spectroscopy and nanoindentation. The extent of reaction of divinylbenzene (DVB) pendant vinyl bonds in homo- and copolymer films is unaffected by changes in initiator concentration, suggesting that bond reactivity, rather than radical concentration, is the limiting factor. Analysis of film step coverage (S) over high aspect ratio (AR) features and sticking probability calculations lend insight into the reactivity of both monomers and explain the extreme conformality of PDVB films (S = 0.87 ± 0.02 at AR = 4.7). In addition, the incorporation and cross-linking of DVB moieties in the copolymer are extremely reproduc...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
