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By the Block

Author: Siobhan Rogers

Publisher: Penguin

Published: 2015-05-25

Total Pages: 333

ISBN-13: 1620336782

Simple, sophisticated quilts sewn "by the block." Today's quilters have many demands on their time but still want to create beautiful quilts. By the Block shows the time-poor quilter how to make sophisticated, complex-looking quilts that are based on easy-to-assemble quilt blocks. The 18 quilts in the book feature modern fabric choices and clever design, but all use standard quilting techniques that are in virtually every quilter's skill set. Author Siobhan Rogers has designed quilts ranging from crib- to king-size for beds as well as several large projects suitable for hanging. Four of the quilts have colorway variations that show the versatility of the basic design. The book is organized according to technique such as log cabins, half-square triangles, or curved piecing, but each project offers a new twist on the traditional methods of piecing and constructing quilts. Some of the quilt blocks are oversized, which help the quilter work efficiently, and the author offers additional timesaving tips.

1970 Census of Housing

Author:

Publisher:

Published: 1971

Total Pages: 422

ISBN-13:

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Statistical, Gradient, Block and Graft Copolymers by Controlled/Living Radical Polymerizations

Author: Kelly A. Davis

Publisher: Springer Science & Business Media

Published: 2007-11-02

Total Pages: 202

ISBN-13: 3540458069

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The design and the realisation of well defined polymer architectures has become an important goal in macromolecular science. The prerequisite for achieving this goal is the availability of controlled polymerisation reactions. Living anionic polymerisation was the first reaction fulfilling these requirements. Cationic polymerisation only came into play when it was realised that it was possible to create an equilibrium between active and dormant species with the fraction of the dormant species being far superior to that of active ones. A corresponding principle applies to controlled radical polymerisation per formed in quite a number of modes such as nitroxide mediated polymerisation (NMP), atom transfer radical polymerisation (ATRP), reversible addition frag mentation chain transfer (RAFT) or catalytic chain transfer (CCT) reactions. All of these variants of controlled radical polymerisation lead to well defined archi tectures with the particular advantage that a much larger number of monomers are suitable and the reaction conditions are much less demanding than those of living ionic polymerisation reactions. Although in controlled radical polymerisation, termination reactions cannot be excluded completely, they are limited in their extent and consequently the mol ecular weight is controlled, the polydispersity index is small and functionalities can be attached to the macromolecules. These features are indicative of the real isation of well defined polymer architectures such as block copolymers, star shaped and comb shaped copolymers.