𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Poly(ferrocenylsilane)-block-Polylactide Block Copolymers

✍ Scribed by Monique Roerdink; Thomas S. van Zanten; Mark A. Hempenius; Zhiyuan Zhong; Jan Feijen; G. Julius Vancso

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
231 KB
Volume
28
Category
Article
ISSN
1022-1336

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A PFS/PLA block copolymer was studied to probe the effect of strong surface interactions on pattern formation in PFS block copolymer thin films. Successful synthesis of PFS‐b‐PLA was demonstrated. Thin films of these polymers show phase separation to form PFS microdomains in a PLA matrix, and ultrathin films (<5 nm) formed SINPATs on silicon and mica. The SINPATs consisted of strongly surface‐adsorbed PLA blocks on top of which the PFS blocks dewetted into sphere‐like features. The lateral spacing between these features was regular, and was typically much larger than the length scale associated with regular block copolymer phase separation.

magnified image

📜 SIMILAR VOLUMES

Contrast Inversion in TEM Studies of Pol
Contrast Inversion in TEM Studies of Poly(ferrocenylsilane)-block-Poly(dimethylsiloxane) Diblock Copolymers
✍ Yishan Wang; Neil Coombs; Ian Manners; Mitchell A. Winnik 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 519 KB

## Abstract This paper describes an unusual contrast inversion phenomenon in TEM imaging of PFS‐__b__‐PDMS block copolymer bulk samples. It is clearly observed especially in samples that show a lamellar morphology that the contrast inversion is accompanied by a contraction of the PDMS domains and a

Synthesis and characterization of biodeg
Synthesis and characterization of biodegradable polylactides and polylactide-block-poly(Z-lysine) copolymers
✍ Ya-Liu Peng; Yong Huang; Hui-Ju Chuang; Chen-Yuan Kuo; Chu-Chieh Lin 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 591 KB

The reaction of (R,R)-trans-1,2-bis (2,4,6-triisopropylbenzenesulfonamidato) Experimental results show that all three complexes 2e4 are active toward the ring-opening polymerization of L-lactide and compound 2 efficiently catalyzes the polymerization of L-lactide in the presence of a variety of alc

Thermostable block copolymers, 1. Thermo
Thermostable block copolymers, 1. Thermotropic poly(ester-imide) block copolymers
✍ Thomas Eck; Heinrich F. Gruber 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 798 KB

## Abstract New poly(ester‐imide) block copolymers were prepared by polycondensation of aminoterminated poly(ester‐imide) blocks with molecular weights from 700 to 6 000 with terephthaloyl dichloride, isophthaloyl dichloride, 2,6‐naphthalenedicarbonyl dichloride, adipoly dichloride, dichlorodimethy

Morphological Behavior of Polystyrene-bl
Morphological Behavior of Polystyrene-block-Polylactide/Polystyrene-block-Poly(ethylene oxide) Blends
✍ Huiming Mao; Marc A. Hillmyer 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 541 KB

## Abstract The morphological behavior of PS‐containing diblock copolymer blends is reported. Three sets of PS/PLA and PS/PEO blends are prepared and evaluated by SAXS, WAXS, DSC, and DMA. No macrophase separation is observed, and the formation of PLA/PEO composite cylinders is identified by SAXS f