Soft Poly(dimethylsiloxane) Elastomers from Architecture-Driven Entanglement Free Design.
نویسندگان
چکیده
Soft, solvent-free poly(dimethylsiloxane) elastomers are fabricated by a one-step process via crosslinking bottlebrush polymers. The bottlebrush architecture prevents the formation of entanglements, resulting in elastomers with precisely controllable low moduli from 1 to 100 kPa, below the lower limit of traditional elastomers; moreover, the solvent-free nature enables their negligible adhesiveness compared to commercially available silicone products of similar stiffness.
منابع مشابه
A photocurable poly(dimethylsiloxane) chemistry designed for soft lithographic molding and printing in the nanometer regime.
Patterning techniques that rely on high-resolution elastomeric elements such as stamps, molds, and conformable photomasks are operationally simple methods for nanofabrication that may find applications in areas such as molecular and organic electronics. The resolution of these "soft" lithographic procedures is often limited by the mechanical properties of the elastomers. We introduce here a che...
متن کاملShape memory effect exhibited by smectic-C liquid crystalline elastomers.
It was long expected and recently shown that main-chain liquid crystalline elastomers (MC-LCEs) may serve as high performance soft actuators due to a coupling of their intrinsic characteristics of high, yet labile, ordering and network strain. Here, we present the synthesis of new siloxane-based smectic MC-LCEs. These new materials exhibit a unique thermomechanical behavior known as the shape m...
متن کاملOne-step Plastic Surface Modification for Irreversible Sealing with Pdms Elastomer at Room Temperature
In this study, we propose one-step chemical modification of plastics for bonding various plastics with poly(dimethylsiloxane) (PDMS) elastomer at room temperature. This was realized by anchoring poly[dimethylsiloxane-co-(3-aminopropyl)methylsiloxane] (amine-PDMS linker), a chemical composed of a PDMS backbone incorporating an amine side group, on the surface of thermoplastics. Following corona ...
متن کاملMeasurement of adhesion between soft elastomers
The JKR (Johnson–Kendall–Roberts) method is widely used to measure the work of adhesion between soft materials. In this article, the JKR theory is summarized and three-dimensionless parameters are proposed to design a proper JKR experiment. The study of adhesion between two commonly used soft elastomers PDMS (Sylgard 184) and Ecofl ex 0300 are obtained with the measured pull-in and pull-off for...
متن کاملEvolution of microstructure during shape memory cycling of a main-chain liquid crystalline elastomer
The field of shape memory polymers (SMPs) has been dominated by polymeric systems whose fixing mechanism is based on crystallization or vitrification of the constituent chains, rendering such systems stiff in comparison to elastomers, gels, and living tissues. Previously, we reported the synthesis and characterization of main-chain, segmented liquid crystalline elastomers (LCEs) that exhibit bo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Advanced materials
دوره 27 35 شماره
صفحات -
تاریخ انتشار 2015